It_______fortwohoursnow
A、rainsD
雨現在還在下，是持續到現在的動作，所以根據句意，用現在完成進行時比較好。
Scientistsdoubtwhetherit’s________toregulateone’sbiologicalclockbydrinking.
Poor speaker of English though he was at the time, he still managed to make himself ________.
In 1985,_______ became the first international hotel company to open a hotel in China bearing its own name.
_______inthought,healmostranintothecarinfrontofhim.
She was ________ be unable to speak
