The engine of the ship was out of order and the bad weather _____the helplessness of the crew at sea.

Did you __________ much time watching Li Na’s match last night— Yes. It __________ me a few hours to watch this match.

gh I have studied Chinese for nearly two years, I still have some difficulty _______ myself.

下列各句中，没有语病的一句是（ ）

After the long journey, the three of them went back home ,__________.