The boy _____ by the window is the only one of the students who _____ from the countryside in our school.
As we know, in the airport we’re ______ to smoke only in special areas.
It is estimated that nearly 100 million people live here, most of ______ in the west.
As for how to promote public education, Professor Li gave us a lot of suggestions which _____ reasonable and practical.
— ______ you finish your essay in time?— I am afraid ______.
— The hill isn’t as beautiful as I have expected.— In fact, it looks better _____ the distance.