1. The minute when he realized what was happening, He was knocked down by the man

　　a b c

　　rushing out from the other side.

　　d

　　答案：A

　　解析：把when 去掉，注意：the minute 或 the moment 位于句首，其后不能跟when.

　　2. However his social position is, it is necessary that he remember to work hard a b c

　　and to serve the people.

　　d

　　答案：A

　　解析：前面這句話意思是：不管他是干什么的，However改為: Whatever, However引導(dǎo)的讓步狀語(yǔ)從句，后面只能接形容詞或副詞，而這道題是修飾的名詞，故要用whatever。

　　3. On more than one occasion, I found myself doubt my own decision though I had a b c

　　been prepared for it in advance.

　　d

　　答案：B

　　解析： doubt改為：doubting, find oneself doing：表示主動(dòng)語(yǔ)態(tài);而find oneself +動(dòng)詞的過(guò)去分詞：表示被動(dòng)語(yǔ)態(tài);另外在find oneself 后面可能跟介詞短語(yǔ)。

　　4. The actual population is not so much. Its rate of increase decide a b c

　　how successful the birth control is.

　　D

　　答案：C

　　解析： decide改為：decides單數(shù)形式。

　　5. It was turned out that the securities were not so valuable as people had a b c

　　expected.

　　D

　　答案：A

　　解析： 去掉was, It turned out that… 后來(lái)證明。