Female soldiers cried ______they left their drill camps on the outskirts of Beijing on October 5, 2009

He at 7：00 in the evening.

ad singer was ill and couldn’t sing that night,and her _______ didn’t perform well, which made the audience disappointed

We haven’t settled the question of ______________ it is necessary for him to study abroad.

Only after staying in England for a few weeks did Li Lei become used ____ Chinese