The building being built now is said to be ______ for students not for teachers.

You look so curious (好奇) about Beijing .Is this the first time that you _____ here ?

etic engineering, ______ progress has been very rapid recently, is perhapsthe most important of all the sciences

Hardly could Tom _____ this amount of homework in such a short time.

u thinkhe will do me a favor— As far as I know,he is the last one to help others. He _______ be prepared to give you a hand,though.