－When shall we set off?－We ____ start off at five o’clock if it ___ raining by then

ys a strange, new dilemma faces Chinese pedestrians: should you help an elderly person who ________ into the street

The hurricane damaged many houses and business buildings; it caused 20 deaths[ ]

.—Which country has the_____population in the world —China.

______ does Tom surf the Internet —Twice a week .