Question

英语！求助！

defend against
concentrate on
accuse of
so as to
depend on
be eager to do
approve of
be supposed to
look forward to
1.The young___knowledge.
2.Here we are well ___a suprise attack.
3.They weren't ____enter the building by the back ____door,however,the front door was locked.

Answer 1

问一下这是什么题啊？⊙﹏⊙b汗
个人理解defend against抵触，反击的意思concentrate on全神贯注的意思accuse of指控的意思so as to与so that意思相仿“……以至于……”的意思depend on依赖的意思be eager to do表本身渴望之意approve of是同意的意思be supposed to是假定假设料想的意思look forward to是盼望期望的意思，这些短语的意思都明白了或许这些空会简单一点。第一题是年轻人（）知识，我认为答案是be eager to do不过如果动词只是do的话应该不对用get应该能好一点。那或许应该是depend on依赖或许会好一些。第二题，面对突如其来的打击我们巧妙地进行了回击，故应该用defend against.第三题就不好理解了，第一个空我认为应该用approve of因为此短语常和be连用，至于第二个空我就不知道了，back door本来就是后门，中间为什么还要有空？如果你们讲答案的话望求讲解，谢谢！