UC知道问2道英语选择
来源：百度知道 编辑：UC知道 时间：2024/05/29 01:49:03
1 What was efficient ten years ago________probably out of date currently.
A will be
B is
C were
D have been
2 ________you have worked through the pratice qustions,you should continue with the test on your own without further help.
A Unless
B Until
C Though
D Once
理由。
A will be
B is
C were
D have been
2 ________you have worked through the pratice qustions,you should continue with the test on your own without further help.
A Unless
B Until
C Though
D Once
理由。
1.D
题意是：十年前流行的东西，已经过时了。
可知，后半句描述的是现在的状况，因此用现在完成时。
你可能要问为什么不用is。因为“已经”过时了，明白吗。
2.D
给你一个例句
Once you begin, you must continue.
一旦开始，就必须继续。
经典搭配，此题的意思是，一旦你完成了练习题，就不要借助任何帮助而继续完成测试。
我是英语老师，我来发表一下个人意见供参考。
1最好选b，用is正好表示现在的状态嘛，而且前面是一般过去时，与一般现在时正好对应。
2最好选c,虽然你已经完成了练习问题，但你应该继续独立完成测试。一个已经完成，好象是不是可以休息了？不，应该继续，所以应该用转折。