It_______fortwohoursnow
D
雨现在还在下，是持续到现在的动作，所以根据句意，用现在完成进行时比较好。
China is a mountainous country.Hills,mountains,and plateaus cover _______ of the total area.
The girl was lucky enough to _______ the bad men and ran away.
_______ he goes, she will go, and she never cares _______ happens.
Scientistsdoubtwhetherit’s________toregulateone’sbiologicalclockbydrinking.