－ You look _____．What's up, sir?－ I can't find my ticket, but it's time to check in．
A. sleepy B. hungry
C. tired D. worried
--- I had a fight with my brother this morning. --- __________.
A. You should say sorry to him. B. Great! You are right.
C. That’s nothing. D. You shouldn’t talk to him first.
This math question is too difficult. Can you help me__________?
A. work on it B. work it out C. work out it D. work for it
---You teach me English and I teach you Chinese. ---_________.
A. The same to you B. That’s a deal C. So do I D. Neither do I
You can’t go to the movie__________ you finish your homework
A. when B. because C. while D .until
--- What’s the matter?
---I can’t do my homework. I_______my homework in the classroom this morning.
A. leave B. forget C forgot D. left
