I think _______ a foreign language is not easy.You should _______ it often.A.to learn ; to practice B.learning; practice C.learn; practicing D.learns; to practice 正确答案是B,可是think后面不是应该＋to do sth.么

I think understanding is very important in a _______(friend) I think _______ a hobby is interesting(develop) I don't think the English play is a good _______ .A.successfulB.successC.successesD.successfu I think .l am not right (改成复合句) I _______ think I am _______. A:I think you should buy a used _______.B:That is a _______ idea.Thank you.3.A:You _______upset.What’s wrong _______ you?B:I _______ to buy a new guitar but I don’t have enough money.A:I think you should buy a used _______.B:That is a _______ ide I don’t think possible to master a foreign language _______ memory work. I don't think is't a good idea,______ _______改反意疑问句 I think you are ill.You need _______(see) a doctor I think a good friend makes me _______ .填 happy 还是be happy I don’t think everyone _______ it.　　　A.enjoy B.enjoyed C.enjoying D.enjoys I think you are _______ clever girl 应该填什么 可不可以填a I advise _______(stop)________(think)of _________(carry)out such a dangerous plan.RT I think _______(make)vocabulary lists_____(be)a good way to learn English. -Do you think _____ it interesting? -Yes.I enjoyed myself a _______. 题干He put forward a theory,_______ of great importance to the progress of science and technology.选择一项：a.I think which is b.which I think is c.I think it is d.which is I think when I leave school,I'll think about _______ a teacher.A.being B.been C.to be I think it is a very nice film改否定句-I ______ _______ it _____ a very nice film. Susan practices English every day,which _______ important for us students.A.I think it is B.I think is C.is I think D.it is I think