[ IELTS Grammar ]
A sharp growth _______in the number of cyclists in Vietnam in 1998
A. seen
B. saw
C. was seen
D. see
Select your answer:

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Verb Tenses and Modals › ViewWhich sentence uses the Present Perfect tense?
A. Tim had eaten dinner when his friends knocked on the door.
B. Sara will have been working on the project for three hours.
C. I have enjoyed reading ever since I can remember.
D. Do you have any homework tonight?
Vocabulary › View
Volcanoes swell when
A. air builds up inside it.
B. there is too much rain.
C. magma pushes up inside it.
D. lava shoots out and falls back inside it.
