I was in trouble,he would come to help meout.

Are you willing to live on Mars one day –____________．It sounds exciting，but it still worries me.

Though Mandela﹙曼德拉﹚____ 27 years in prison﹙监狱﹚, he thought it meaningful.

Each of the students in our class　　　　great interest in English and we each　　　　a copy of A New English-Chinese Dictionary.

Was it by cutting down staff _____ she saved the firm?— No, it was by improving work efficiency.