30. Chinese must have the largest number of speakers, ________ ?
| A．mustn’t that | B．haven’t they |
| C．don’t they | D．doesn’t it |
相关试题
If it ________ for the heavy rain then, we would have arrived here ahead of time.
| A．shouldn’t be | B．weren’t | C．had not been | D．be not |
Every weekend, Mrs 
Green asked her daughter to visit the museum to ______ her interest in science.
| A．grow | B．develop | C．make | D．build |
All these activities can serve as a platform ______ you might find the one you love.
| A．which | B．that | C．when | D．where |
—How’s your tour around the North Lake? Is it beautiful?
—It _______ be, but it is now heavily polluted.
| A．will | B．should | C．would | D．must |
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