我想问几道英语单项选择题

我想问几道英语单项选择题
1.What is the best way _______ the question?
A. answer B.answering
C.to answer D.to answering
2.You shouldn't speak English to them.They are from Japan and they don't know English _______.
A. at allB.at times
C. any more D. any longer
3.More and more young people are trying to do something ______ the old.
A. servedB. to serveC. serve D.serves
4.Because of the _____ of their purposes,the students study English in______ways.
A.different;different B. different;differently
C.differences;differentD. differently;difference
5.Susan got______about the words and ended_______in a low voice.
A. frustrating;speaking
B. frustrated;up speaking
C. frustrate;to speak
D. frustrating;up speaking
请求英语高手回答
还有几道。。。。用所给的词的适当形式填空
different,climb,frustrate,memorize,quick
1.Sometimes she finds watching movies______because the people speak too fast.
2.Many students think it's difficult to study maths,but I feel.
3.Wang Lin said that______the words of pop songs also helped a lot.
4.Miss Chen spoke too_______,so we could hardly understand what she said
5.________mountains is interesting.