I left my umbrella in my room. Could you wait here_____ I go back to get it?
| A．when | B．if | C．while | D．before |
The sign on the left tells us that _______ .
A. this is a place for us to swim
B. it’s safe to swim in this place
C. swimming is not allowed here
Could you tell me ______?
A. what is your job B. what your job is C. your job is what
—Don’t forget ______ your homework. John.
—Ok. I'll do it right now.
A. doing B. do C. to do
—May I speak to Lin Tao?
—Sorry, he is not in. He ______ to Changsha.
A. has been B. has gone C. went
This dictionary______ Tom’s. It has Ann’s name on it
A. might be B. may he C. can’t be