8. The calculations are________ complicated that they cannot be done without a computer.
A. so B. such C. too D. more
9. Oh my god! I haven't________ the iron! I must go back right now.
A. turned off B. put on C. cut down D. take off
10. - “Must I take my umbrella?”
- “No, you________. It's not going to rain.”
A. needn't B. don't C. mustn't D. haven’t
11. This morning the newspaper had a very interesting________ on the population problem.
A. composition B. article C. work D. publication2
12. Mark Twain is an author________ I like best.
A. his books B. the books of whom
C. whom books D. whose books
Loga
Sinh Học lớp 12
