----- My son was admitted to a key university last year.
----- Congratulations! His hard work finally ________,
| A．paid for | B．paid off | C．paid back | D．paid attention |
Even on a cold day he prefers ______ out to play football ______at home．
| A．going;rather stay | B．going;to staying |
| C．to go;rather than staying | D．to do;rather than to stay |
It was in the lab______ was taken charge of by Professor Zhang ____ they did the experiment．
| A．where, that | B．which, where | C．that, where | D．which, that |
—The railway station,please．I have to be there in ten min
utes．
—______,but I’ll do my best．
| A．No problem | B．OK | C．I can’t promise | D．I can’t do that |
—Is it for two months ______ they have stayed here?
—No,it is only three weeks ______they arrived here．
| A．that;since | B．that;when | C．when;that | D．since;before |
—I really appreciate______ time to relax．
—I don’t doubt ______ able to do so．
| A．to have;you to be | B．having;that you being |
| C．to have;you are | D．having;that you are |