Our music teacher is a beautiful girl. She is like a sister _____us.
| A．for | B．at | C．to | D．in |
She told us that she _______ her handbag on the bus.
| A．left | B．forgot | C．missed | D．failed |
—_______? —My watch doesn’t work.
| A．Why are you here | B．How do you do |
| C．What’s wrong | D．What’s this |
I won’t leave here until my mother _______ back.
| A．will come | B．is coming | C．came | D．comes |
We really don’t know _______. Could you help us?
| A．how to do | B．what to do |
| C．to do what | D．to do how |
—Will you please ________ do that? —OK, I won’t.
| A．won’t | B．not | C．don’t | D．can’t |