问题:选择填空 Pumas never attack a human being except ______ cornered. a. they are b. being c. that they are d. when they are答案是d. 但我觉得 a, c 看着好像也对,老师能讲一下 a, c 为什么...
语法书上讲到:1.The farmer used wood to build a house which to store grains in.—该句错误2.We moved to the country so that the kids would have a garden which they could play in.—该句正确什么情况下介词可以置于句末?什么情况下不可以?
... machine is out of repair.这台机器失修了。(2) 在作目的或原因状语的介词短语中,介词有时转译成动词。如:The plane crushed out of control.这架飞机失去控制而坠毁。The letter E is commonly used for electromotive force.通常用E这个字母表示电动势...
...es are too big for my son, but he'll grow into them by next year.1)时间状语是by next year,那么谓语动词应该用完成时he will have grown into...吗?2)当时间状语带有类似by next year等时,谓语动词究竟是一般将来时还是将来完成时呢?3)本句中,...
...t work. I think something must be
wrong with it.请问后面是一个宾语从句吗?是这样分析吗?I think 是主句主谓,后面是从句 something must be wrong with it.主语是something吗?must be是系语,wrong with it的it是代指sth还是watch呢?wrong with是it的定语吗?wr...