﹣﹣﹣What do you think of the environment in your hometown？
﹣﹣﹣It's Both the air and the water are badly polluted．（ ）
A．not bad
B．as good as before
C．much better than before
D．not as good as before
I want to learn a second foreign language English．（ ）
A．exceptB．besideC．besidesD．except for
National Day celebrations for China's seventieth birthday in about three months．（ ）
A．will be heldB．will hold
C．is heldD．was held
of the students in our class_____going to the summer camp in Beijing next week．（ ）
A．Two fifths，isB．Second fifths， are
C．Second fifths， isD．Two fifths， are
﹣﹣﹣Listen! Is that Linda playing the piano in the room？
﹣﹣﹣No． It be Linda， she has gone to London．（ ）
A．may notB．needn'tC．can'tD．mustn't