What a pity! Their experiment is a failure.—They ________ better under more favorable conditions.

下列各句中，没有语病的一项是（ ）

President Xi Jinping says Chinese government will do what it can against terrorism(恐怖主义).

If I were you, I would have accepted the job.— I ______ the offer because it would mean frequent business trips away from my family.[ ]

He usually ___________ at 6:00 in the morning.