My brother taught ________ (reflexive pronoun) how to fix his bicycle.
My brother taught HIMSELF how to fix his bicycle.
The students built this robot __________ (reflexive pronoun).
The students built this robot THEMSELVES.
Eating fish from this polluted river is a ________ to people's health.
a. source
b. threat
c. destruction
Eating fish from this polluted river is a THREAT to people's health.
The Roman Empire ______ about 1,500 years.
a. led to
b. lasted
c. took place
The Roman Empire LASTED about 1,500 years.
This robot is ________ diagnosing a disease.
a. risky
b. time-consuming
c. capable of
This robot is CAPABLE OF diagnosing a disease.
My friend and I ________ for the beach clean-up last weekend.
a. volunteered
b. has volunteered
c. have volunteered
My friend and I VOLUNTEERED for the beach clean-up last weekend.
The biologist ________ several times recently about how plastic harms marine life.
a. spoke
b. have spoken
c. has spoken
The biologist HAS SPOKEN several times recently about how plastic harms marine life.
In 2018, the volcanic eruption of Mt Kilauea in Hawaii changed the _______ of the area.
a. landscape
b. fossil fuels
c. destruction
In 2018, the volcanic eruption of Mt Kilauea in Hawaii changed the LANDSCAPE of the area.
In some countries, there has been a ________ in the number of students studying history.
a. knowledge
b. decline
c. development
In some countries, there has been a DECLINE in the number of students studying history.
Hybrid cars _________ both petrol and a battery.
a. run on
b. set up
c. get around
Hybrid cars RUN ON both petrol and a battery.
By the time World War II ended, over 50 million people _________.
a. did died
b. died
c. had died
By the time World War II ended, over 50 million people HAD DIED.
The university _________ protests after one had become violent.
a. did banned
b. banned
c. had banned
The university BANNED protests after one had become violent.
We ________ to start a community garden.
a. restored
b. raised money
c. exposed
We RAISED MONEY to start a community garden.
Do you think young people today have more f_______ to decide their futures than they did 100 years ago?
Do you think young people today have more FREEDOM to decide their futures than they did 100 years ago?
The first boat to get its power from _______ was built in 1783 in France.
a. tracks
b. steam
c. networks
The first boat to get its power from STEAM was built in 1783 in France.
Why ______ you ______ (not finish) your project yet?
Why HAVEN'T you FINISHED your project yet?
How ______ you first ______ (hear) about the effects of global warming?
How DID you first HEAR about the effects of global warming?
Many cities have b_____d smoking on their beaches.
Many cities have BANNED smoking on their beaches.
Our next local election will t______ p______ next month.
Our next local election will TAKE PLACE next month.
The world's fastest h____-s_____ train is the Shanghai Maglev, which travels at nearly 430 kph.
The world's fastest HIGH-SPEED train is the Shanghai Maglev, which travels at nearly 430 kph.
_____ you _____ (write) your report after you had done all the research?
DID you WRITE your report after you had done all the research?
Sophie didn't want to leave until she ______ (see) everything.
Sophie didn't want to leave until she HAD SEEN everything.
I hope one day all cars will use r_______ energy like solar power.
I hope one day all cars will use RENEWABLE energy like solar power.
The war stopped t_______ between the two neighbouring countries.
The war stopped TRADE between the two neighbouring countries.
More than 500 years ago, Leonardo da Vinci c_____ u_____ with the idea of a flying machine that is similar to today's helicopter.
More than 500 years ago, Leonardo da Vinci CAME UP WITH the idea of a flying machine that is similar to today's helicopter.