—Look! Someone the floor. It looks quite clean now.
— I guess Tom did it for he was on duty today.
A. is sweeping B.was sweeping C. has swept
—Do you know when ______________the Subway Line 1 and Line 3 in Changsha exactly?
—No. But I know that they _______ into use in the near future.
A. we can use, will be put
B. can we use, is being put
C. we can use, are going to put
—I won’t forget the teachers hereused to help and trust me.
—Neither will I.
A. which B. whose C. who
— Susan, how do you like the dinner I cooked today?
— Wonderful. It tastes much_____ than what I have in the school canteen.
A. delicious B. better C. more healthily
—______ annoying air pollution !
—I can’t agree with you more. Nobody enjoys living in such a badly polluted city.
A. What an B. What C. How