1. One of the most important social problems of today is _____ jobs to the unemployed.

A. what to be given                               B. having given

C. how to give                                      D. to have given

2. The doctor said I was over-weight. If only I _____ less!

A. ate                                                  B. have been eating

C. have eaten                                        D. had eaten

3. It is said that he got laughed at for _____.

A. his dishonest                                    B. been dishonest

C. being dishonest                                 D. to be dishonest

 答案及解析：

 1. C。做表語的非謂語動詞表示具體時間（將來）的行為，故用不定式一般時，排除 B、D，短語中不缺少成分，排除A。故答案為C。

2. D。if only后用虛擬語氣。此句中表示與過去事實相反，應該使用had+過去分詞形式。故答案為D。

3. C。for介詞，介詞后面使用動名詞形式。故答案為C。