____ does your friend come to China?—”Once a year.”[ ]

We’ll have ________ holiday next month. Will you go home?—No. If I go home, I’ll have to take________ ride.

Happiness and success often come to thoseare good at recognizing their own strengths.

The reason ________ he was late for the meeting was _______ his car had broken down on the road.

I was not good at math, so my friend helped me _____ it last night. [ ]