f you want to get there quickly,you’d better take the track in the forest. The underlined word means ____.

Charles _______on his new model car from seven to eight yesterday evening .

How far is it from your school to Lake Taihu—It’s about ________ drive.

It ______ be the postman at the door. It’s only six o’clock.

There seems to be two causes as I try to figure out __________ that prevents so many children from being as happy as before.