In our class _____ of the students _____ girls. A. three fifths; are B.third fifths; are C. three fifth; are
--- What’s this, Xiao Hong?— It’s _____ orange.
Must we sweep the floor right now? No, you _______. You can do it later.
Excuse me, may I ask you some questions, Jane? OK, _______.
To fight SARS, we should ______ animals.
Did you give up ?Yes. I know smoking may cancer.