I. 語法、詞匯。用適當(dāng)?shù)脑~填空。從A、B、C、D四個選項中，選出一個正確答案，并填在答題紙相應(yīng)的位置上。（本大題共25小題，每小題1分，共25分）
Complete each of the following sentences with the most likely answer. (25 points)
1．Much ______ been said about the problem but nothing ______ been done so far.
A．has, had  B．has, has
C．had, had  D．have, have

2．I was advised to arrange for insurance ______ I needed medical treatment.
A．nevertheless  B．a(chǎn)lthough
C．in case  D．so that

3．Half an hour after the police surrounded ______ hiding place, the gang ______ arrested.
A．its, was  B．its, were
C．their, was D．their, were

4．Government reports, examination compositions, legal documents and most business letters are the main situations ______ formal language is used.
A．in which  B．on which
C．in that  D．a(chǎn)t what

5．Someone turned the radio down, ______?
A．did he  B．did they
C．didn’t he  D．didn’t she