______of the earth ______ covered by water.A. Two thirds; is B. Two thirds; are C. One thirds; is
Julia is very clever.In fact,I doubt whether anyone in the class has_______ IQ.
—Could you tell me_________?—He is in the library.
—Why don’t we take a little break? —Didn’t we just have_________?
—I don’t care what my teachers think.—Well,you________.
We’ll visit Expo 2010 Shanghai this Sunday_______ it rains or it’s very hot.