12. Our classmates are planning _________camping next Sunday.
A. going B. to go C. go D. to going
13. It is important _________students to attend all the lectures before the exam.
A. for B. with C. of D. onto
14. We _________our parents tonight.
A. are visiting B. visited C. visits D. visit
15. Your windows need _________at least once a year.
A. have cleaned B. being cleaned C. to clean D. cleaning
16. Thousands of animals _________in the forest fire.
A. were killed B. killed C. has killed D. to be killed
17. When they realised they were flying in very bad weather, many people screamed_________.
A. in time B. in panic C. in the face D. in danger
18. _________can you jog? – About 5 km.
A. How often B. How long C. For how many D. How far
19. Tom lost his job _________his laziness.
A. in spite of B. although C. because of D. because
20. I got up late because my clock didn’t_________.
A. go away B. go wrong C. go out D. go off
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