几个动词填空啊。。。。英语高手帮帮忙啊。。。。

Question

1、I （）（prefer）wearing black to blue when I was young
2、Jack said that he （）（pay）for the car until he got it。
3、The twins （）（help）with a charity show this time last week。
4、The robot （）（catch）a virus ，so we can’t use it

Answer 1

1.preferred : prefer doing sth to doing sth 喜欢做某事而不喜欢做某事
wearing black to blue＝wearing black to wearing blue
2.didn't pay not do sth until.....直到......才做某事
3. were helping 说的是上周的这个时候，所以是过去进行时
4. has caught a virus

Answer 2

1、因为后面是I was young 所以前面也应用过去时 因为在陈述过去的喜好 所以用一般过去时
可以填 preferred
2、由句子可知 事情发生在过去 not…until 句型 直到......才做某事 所以填 didn't pay
3、由时间状语 last week 可知 事情发生在过去 又因为有 this time 这个是典型的过去进行时的标志 指当时的时候 所以 填 were helping
4、这句的意思是前半句事情的发生 影响到后半句的结果 这个应用 现在完成时 表示对 事情产生了一个结果 填 has caught

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Answer 3

preferred
didn't pay
helped
has caught

Answer 4

preferred
didnt pay
were helping
has caught

Answer 5

preferred
hadnt pay
were helping
has caught