首页 > 留学知识库

问题: 需要高手回答

491.jasper is one of his three sons who ___in the army, the other two ___in the navy.
a.is , are b .are ,are c.is , is d. are , is 选哪个?

495.---is mary still at work?
---yes, but she said she ___a holiday next Saturday. She'll pay a visit to Italy.
a.will go on b.went on c. took d.went on for选A为什么,别的答案详细说明

498.a bomb sent the ship ___to the bottom of the sea.
a. to sink b.sunk c.sinking d.being sunk
为什么是C,B不行吗?

解答:

491.a.is , are
很明显,jasper一个人在陆军中,所以用is (也就是说前一个定语从句是修饰one的) ,另外两个儿子在海军中,所以用are
495.--- go on holiday 正在休假[去休假],是固定搭配,所以D答案是错的,时态也不对。另外两个答案时态不对。因为假还没有休呢(因为next Saturday还没有到呢),不能用过去时,如果last Saturday,假休了,也只能用过去完成式或过去正在进行行。
498因为船是自己沉下去的,所以有用主动,不能用被动,所以不能选B.
send sb doing sth 使(导致)某人做某事,是固定用法