Give the correct tense or form of the verbs in brackets.
a. The ladder looks unstable. It (1. fall) ______ apart. I wish I (2. have) ______ enough time to do something
about it.
b. My teacher was not at home when I (3. arrive) ______. She (4. just/ go) ______ out.
c. By the time he (5. return) ______ next year, his daughter (6. already/ leave) ______ school.
d. I (7. never/ read) ______ any novels (8. write) ______ by a Korean author.
e. She (9. walk) ______ all the way home. That's why she (10. be) ______ tired now.
f. I dislike living in London because it (11. rain/ always) ______.
g. The plane had taken off before they (12. arrive) ______ at the airport yesterday.
h. The children seemed (13. be) ___ surprised to hear the news.
i. A: Why are you holding a piece of paper?
B: I (14. write) ______ a letter to my friends in Texas.
j. The Titanic (15. cross) ______ the Atlantic when it (16. strike) ______ an iceberg.
k. Ted: It is so hot in here!
Sarah: I (17. turn) ______ the air-conditioning on.
l. By the time he stopped at the first gas station, he (18. drive) ______ for three hours.
m. Wind (19. come) ______ from differences in air pressure.
n. My brother is the only one (20. realize) ______ the danger.