----- Do you know when Tonny came back last night?
----- Yes. It was not yet nine o’clock _____ he came back home.
| A．before | B．when | C．that | D．until |
11．There is no light on--- they _______ be at home.
| A．mustn’t | B．can’t | C．needn’t | D．shouldn’t |
10．--- Hello, John here, can I speak to Mary , please?
---_____________.
| A．Of course, but she is out | B．She will be back in a moment |
| C．You may leave a message | D．Hold on, please |
9．_____ makes this shop different is that it offers more personal services.
| A．What | B．Who | C．Whatever | D．Whoever |
8．Although this_______ sound like a simple task, great care is needed.
| A．must | B．may | C．shall | D．Should |
7．Please ______ your sister to bring the ticket for the concert.
| A．remind | B．remember | C．warn | D．Let |