Do you know the man _______ is talking with our English teacher?—Oh, he must be Lin Tao’s father. He was looking for Lin Tao just now.

Students often ask the teacher ____ help.[ ]

I remember ________used to be a quiet village.

I have tostudy ______ my science test ______ Thursday afternoon. [ ]

I hope we only have half an hour ____ homework, so we can have more time ___ our hobbies.