31. You see the lightning _____ it happens, but you hear the thunder later.
| A．for an instant | B．on the instant | C．in a instant | D．the instant |
Things like eye contact and hand gestures _____ great importance in situations such as job interviews．
| A．take in | B．take off | C．take on | D．take down |
—Don’t you think Obama is _____ success?
—Yes, I do． He is popalar with _____ public in America．
| A．/ , a | B．a, a | C．the, a | D．a, the |
—I can’t move the bookcase． Could you give me a hand?
—_____．
| A．With pleasure | B．It’s my pleasure |
| C．Not at all | D．Never mind |
When I got back home I saw a message pinned to the door, ____ “Sorry to miss you; will call later.”
| A．read | B．reads | C．to read | D．reading |
The achievements we have made are largely ___ the hard work of our parents and teachers.
| A．thanks for | B．resulting in | C．leading to | D．due to |