Vocabulary
about leap years
word forms
past participles
Present Perfect Progressive
100
to change something slightly, or a certain number of hours to work

to shift or a shift

100

What does to leap mean?

to jump

100

What verb does the adjective divisible come from?

to divide

100

What's the past participle of to meet?

met

100
Complete the sentence: He has _______living in Albany for 2 years.

been

200

a change that makes a wrong thing right

a correction

200

Which day (date) is added to a leap year?

Feb. 29th
200

What verb does the noun correction come from?

to correct

200

What's the past participle of to fall?

fallen

200

Complete the sentence: She has been ___________English since last June.

studying
300

a 100-year period

a century

300

How many days does a leap year have?

366

300

What verb does the noun adoption come from?

to adopt

300

What's the past participle of to write?

written

300

Complete the sentence: They _________ been watching TV for the past 3 hours.

have
400

a person who studies the universe

an astronomer

400

Which calendar do we use today: the Julian or the Gregorian?

the Gregorian
400

What is the verb form of the noun advice?

to advise

400

What's the past participle of to cost?

cost

400

Change to a question: Mary and John have been working at that company since 2010.

Where have Mary and John been working since 2010?

500

to cause to occur at the same time or rate

to synchonize

500

Why do we add leap days into the calendar?

So that the seasons will synchronize with the calendar.

500

What verb does the noun reformation come from?

to reform

500

What's the past participle of to buy?

bought
500

Change to a negative: I have been reading that book for 2 weeks.

I haven't been reading that book for 2 weeks.

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