----- Hi, Tracy, you look tired. ------ I ________ the living room for three hours.
How did you manage to get to the school on time _________you missed the school bus?
—What do you think of Mrs. Smith? —She is _______ of a good housewife, for her children’s room is always a terrible mess.
The charity sale our school organizes every year has taught us much. _______ we would never have learned it in class.
As is known to all, Montreal is the second largest French-speaking city in the world, _____.
Chinese vessels ________ 646,000 square kilometers in the southern Indian Ocean in search of the missing Malaysian flight MH370.