2、由连接词and或both … and连接起来的合成主语后面，要用复数形式的谓语动词。如：Lucy and Lily are twins. / She and I are classmates. / The boy and the girl were surprised when they heard the news. / Both she and he are Young Pioneers.

　　　 注意：① 若and所连接的两个词是指同一个人或物时，它后面的谓语动词就应用单数形式。如：The writer and artist has come.; / ② 由and连接的并列单数主语前如果分别有no, each, every more than a (an) , many a (an)修饰时，其谓语动词要用单数形式。如：Every student and every teacher was in the room.. / No boy and no girl likes it.

1、以单数名词或代词、动词不定式短语、动名词短语或从句作主语时，谓语动词一般用单数形式；主语为复数时，谓语动词用复数形式。如：His father is working on the farm. / To study English well is not easy. / What he said is very important for us all. / The children were in the classroom two hours ago. / Reading in the sun is bad for your eyes.

　　　 注意：由what引导的主语从句，后面的谓语动词多数情况用单数形式，但若表语是复数或what从句是一个带有复数意义的并列结构时，主句的谓语动词用复数形式。如：What I bought were three English books. / What I say and do is (are) helpful to you.

80. ---You are so lucky. 　　　　　 　---What do you mean ____that?　 (2002年春招)

A. for　　　　　　 B. in　　　　　　　 C. of　　　　　　　 D. by

79. I know nothing about the young lady ___she is from Beijing.

A. except　 　　　　　 B. except for　 　　 C. except that　 　 D. besides (2000 上海高考13)

78. Does John know any other foreign language ___French?

A. except　 　　　 B. but　　　　　　　　　 C. besides　 　　　　 D. beside　 ('89MET. 13)

77. ____production up by 60%, the company has had another excellent year.

A. . As　 　　　 　　　 B. For　 　　　　　　　 C. With　 　　　 　D. Through　　 (2000NMET. 18)

76. The number of the employees has grown from 1,000 to 1,200. This means it has risen ____20 percent. 　　　　　　　 　A . by　 　　　　 B. at　 　　　　 C. to　 　　　　 　　　 D. with　　 　('99 上海高考)

75. Let's walk over ___the shop on the other side of the street.

A. in　 　　　　　　　 B. to　 　　　　　　　　 C. under　 　　 　　　 D. by　　　 ('93上海)

74. _____most students, she was always well prepared and never came to class late.

　A. Like 　　　　　　　　　　 B. As　 　　　　　　　　 C. For　 　　　　 　　　 D. To　　 ('98上海高考题　 2)

73. The doctor will be free ____.

　A. 10 minutes later 　　　　　　　　　　　　 B. after ten minutes

　C. in ten minutes　 　　　　　　　　　　　　　 D. 10 minutes after('92MET. 20)