35. _______ Tom, we wouldn’t have been late for the last bus.
A. If we didn’t wait for
B. If we haven’t waited for
C. we hadn’t waited for
D. Had we not waited for
34. The twin brothers stand under the tree, ______ and say nothing.
A. puzzled B. puzzling
C. being puzzling D. being puzzled
33. ________ that I was puzzled.
A. So difficult a question did he ask me
B. Such difficult a question did he ask me
C. Such a difficult question he asked me
D. He asked me a so difficult question
32. The factory, including its machines and buildings, ______ burnt to ashes during the fire.
A. is B. are
C. was D. were
31. – Are you cleaning my room?
– I can’t help _____. I can’t bear seeing people’s room in a mess!
A. it B. this
C. anything D. so
30. He thought that painting copied by a modern artist was ______ great value and bought it ____ over a thousand dollars.
A. at; for B. of; for
C. of; at D. for; by
29. Let him who tied the bell onto the tiger take it off -- _____ started the trouble should end it.
A. whomever B. who
C. whoever D. anyone
28. Social networking is an important factor _______ business success.
A. devoting to B. appealing to
C. attaching to D. leading to