第1个回答 2009-03-28
1.没有watch sb to do 的！
如果用watch sb doing是一瞬间，正在做
而watch sb do是持续，一直看别人做的
2.Have you finished doing your homework
yes,i have.i finshed doing it2 hours ago(有ago就只要用过去式）
3.i couldn`t make me understood by them(意思是我被别人理解，所以用被动）
4.the students are confused about the confusing problem(confuse作形容词用，加ing)
第2个回答 2009-03-28
he likes watching the children play- -
（这里用watch sb doing sth还是watch sb do sth?)
do
因为强调一般状态，所以不用进行时
-you-(finish)doing your homework?
yes I have I-(finish)doing it 2 hours ago
现在完成时Have；finished；finished
I couldn't make me -(understand)by them
这道题有问题，
应该是make sb. do或者make oneself done,
按题意应该是understood
the students are confused about the -(confuse)problem
confusing 这是形容词，表示令人疑惑，费解的
第3个回答 2009-03-28
he likes watching the children - -
这里用watch sb do sth，因为这是一般现在时。
Have you finished doing your homework?
yes I have I finished doing it 2 hours ago
I couldn't make me understood by them
被理解
the students are confused about the -confusing problem
令不人解的本回答被提问者采纳
第4个回答 2009-03-28
watch sb doing sth看某人正在坐X事
Have you finished doing your homework?
yes I have, I finished doing it 2 hours ago.
I couldnt make me understood by them
The students are confused about the confusing problem
第5个回答 2009-03-28
watch sb不能直接跟do，至少也是to do，但就你这个句子来看应该写成watch sb doing sth，后面几句你要问什么啊？