﹣Life is becoming convenient with the Internet．（ ）
﹣﹣That's true!Almost everything ______ be done online．
A．mustB．wouldC．shouldD．can
Can I use your dictionary，Grace？
Sure．But you return it after class．（ ）
A．canB．mustC．may
The safety of food has become one of the ________ problems in our daily life．（ ）
A．importantB．more important
C．most important
In order to make our city more beautiful，we have planted _______ trees these years in Yiyang．（ ）
A．three thousandsB．thousand of
C．thousands of
Are these _________ new trousers？
No，they are not _________．（ ）
A．your，myB．your，mineC．yours，mine
________ fine weather it is today!（ ）
A．WhatB．HowC．What a