He can’t state clearly how long he has ___________ the bicycle?
What _____ you _____ if you had a million dollars?
I think __________ should be allowed to drive.
His grandpa moved to Beidaihe tothe hot weather in Wuhan every summer.
Susan’s parents have bought a large house with a swimming-pool. It ____ be very expensive.
---Is Mr. Green really badly ill? ---. He’s in the hospital.