Give them a hand this time and I am sure they will offer theirs ______ in the future.
| A．by turns | B．in turn | C．at turn | D．in return |
.The great contributions he made________our country is________worth remembering.
| A．to, well | B．of, well | C．to, very | D．for, very |
The theory________by Einstein was later to prove true, but at that time few people could accept it .
| A．put out | B．put together | C．put aside | D．put forward |
Was it in 2000________he was still in middle school________this boy became an
expert at computer?
| A．when; that | B．that; where |
| C．when; where | D．that; that |
Can you think of some cases ________drivers obviously knew the traffic rules but
didn't obey them?
| A．why | B．where | C．as | D．which |
..---You haven't said one word about the design, Joe. What's your idea?
---Sorry. I________about something else.
| A．thought | B．am thinking |
| C．was thinking | D．had thought |