a device that is placed inside a machine (such as a clock, toy, or car) to supply it with electricity
battery
"Science and Technology. How much do you know?"
What do modern gadgets use?
Batteries or electricity
That's the woman __________ teaches our science class.
Answer: who / that
I __________ (walk) to school when I saw my friend.
Answer: was walking
He is out of breath because he __________. (run)
Answer: has been running
a large, round object in space (such as the Earth) that travels around a star (such as the sun)
planet
According to the story. Why might life be on other planets?
- The universe is huge
- Powerful telescopes showed us
- There are so many planets that we haven't discovered yet.
This is the book __________ I read last summer.
Answer: which / that
While we __________ (have) a picnic, it started to rain.
Answer: were having
How long __________ English? (you / study)
Answer: have you been studying
a scientific test in which you perform a series of actions and carefully observe their effects in order to learn about something
experiment
Secret Destinations
What is Greece famous for?
Ancient monuments and Sandy beaches
The restaurant __________ we had dinner was very expensive.
Answer: where
When the teacher __________ (enter) the room, the students were talking.
Answer: entered
She __________ a book for two months.
Answer: has been writing
someone who is between 13 and 19 years old
teenager
How many people visit the Grand Canyon every year?
About 5,000,000 million
I have a neighbor. He has three dogs.
Turn this into a relative clause
Possible Answer: I have a neighbor who has three dogs.
I __________ (eat) lunch when I __________ (remember) the test.
Answer: was eating, remembered
The children __________ in the garden. Their clothes are all dirty.
Answer: have been playing