ssian rocket designer has died. For many years, he ____ as a deputy to the father of Soviet space program.

In class the professor__________ the financeproject in simple but vivid language to make it easier for us to understand

I know you are busy，but do you think you could spare us a few hours？We are________hear your experiences abroad.[ ]

Did you telephone the manager’s office?—Yes，he__________back before 9 o’clock this morning.

You and I could hardly work together，________？[ ]