Chinese New Year is_____ the _____ day of the _____lunar month.A.on…one…oneB. in…first…firstC. on…first…first
They stayed in Beijing for a few days and visited some ________.
If you have headaches often, you need _______ .
He wasn’t _____ to understand the questions.
The strong young man can swim ______ the river.
The boss(老板) makes the workers _____ these machines(机器) for ten hours a day.