—Listen! Is Mary singing in the next room?
—No. It _______ be Mary．She has gone to Shanghai for an important meeting.
| A．can’t | B．may not | C．mustn’t | D．needn’t |
-_______is the old bridge over the river?
- Not very wide. It's about three meters.
| A．How long | B．How heavy | C．How wide | D．How high |
We didn’t find________ in the picture.
| A．interesting anything | B．nothing interesting |
| C．anything interesting | D．interesting something |
- _______ exercising, and you'll be healthier.
| A．Keep | B．To keep | C．Keeping | D．Kept |
----When did you _________ Suzhou last night?
----At about 9 p.m.
| A．arrive in | B．arrive | C．arrive at | D．got to |
Are they ______ grandparents ?
| A．he | B．she | C．you | D．your |