1、 To get up early and to go to sleep early ____ good for your health.
A. is B. are C. was D. were
解析:A 由and连接两个名词,包括两个不定式、两个动名词作主语,若指同一件事或一个概念事,谓语动词用单数形式。
2、 To play basketball and to go swimming ____ useful for character-training.
A. was B. is C. are D. were
答案:C
这里有两道题,第一道题给出了那样的解释,但第二道题给的答案是C,在网上查了好多地方都是C。这两道是一个类型吗?这个答案到底应该是什么应该怎么理解呢?很困惑,希望能人帮助解答一下,谢谢!