After you have used the dictionary, please put it back ______ it belongs.
| A.to whom | B.to which | 
| C.what | D.where | 
As a rule, this hotel offers___18 percent discount for____guests staying on Friday and Saturday.
| A.a; the | B.the; the | C.the;不填 | D.an;不填 | 
I lent him ten magazines,_____are more wonderful than you can imagine.
| A.most of which | B.most of them | C.and most of which | D.most of that | 
Although she begged her father over and over again, he still didn’t _____ her marriage.
| A.depend on | B.put forward | C.watch out | D.approve of | 
You needn’t take a taxi to go to the station, because it is____walking distance here.
| A.in | B.within | C.under | D.below | 
You____me my bike yesterday afternoon; I needed it so badly.
| A.should have returned | B.should return | 
| C.must return | D.must have returned |