IV. Put the verbs in brackets into correct form and tenses
a. I want (become - 1) an astronaut when I grow up.
b. Peter could (swim - 2) when he (be - 3) very small.
c. Do you think there (be - 4) a city underwater in the future?
d. He (not study -5) hard when he was young.
e. Everybody (cheer - 6) and (sing - 7) at the moment.
f. (Smoke - 8) is not good for our health.
g. Brian usually (not chat - 9) online with his friend.
h. Children like (ride - 10) e-bikes to school.
a. to become
b. swim - was
c. will be
d. didn't study
e. is cheering - singing
f. Smoking
g. doesn't usually chat
h. riding