_____ they have some opposite view, they all think Chinese medicine is helpful.

A. Until B. Although C. Since

Paul isn’t as ______ as Sandy. He often makes mistakes in his homework.

  A. careless           B. more careful C. more careless    D. careful

Last night Dad and Mum didn't come back home _____ I finished my homework.

A. while          B. if               C. until

 I like the MP3, _____ it's too expensive.

A. but          B. so           C. and

It’s too late to invite any more people. ______, you know how Tim hates parties.

    A. Besides          B. However          C. Still                D. Instead

 I really enjoyed your lecture, ______ there were some parts I didn’t quite understand.

    A. because          B. unless               C. though           D. After

— _____ Mary _____ Alice has joined the music club because they have no time.

— It’s a pity!

A. Both…and 　　　 　 B. Either…or　　　 　 C. Neither…nor

—Mom, shall we have supper now?

—Oh, we won’t have supper ______ your dad comes back.

A. until 　　　　　 　 B. since 　　　　　 　 C. while 　　　　　 D. after

–What was your brother doing at this time yesterday?

–He was reading a magazine ________ I was writing an e-mail at home.

A. as soon as　　　 B. after　 　　　 　　 C. until　　　　　 D. while

 I won’t pass the exam ______I work hard..

A. whenever          B. because              C. if               D. unless