The student couldn’t _________what the teacher was trying to explain.
| A．know | B．grasp | C．learn | D．get |
Instead of flocking into the cities, the peasants __________ villages and townships of a new type in the past few years.
| A．had built | B．was building | C．have been building | D．built |
Mr Smith was having a meeting at that time, otherwise he ______________over to help us.
| A．would have come | B．would come | C．had come | D．was going to come |
Not only John and Tom but also their sister, Mary, _______ great interest in the piano lessons.
| A．take | B．takes | C．have taken | D．had taken |
—You won’t believe it, Sam. I was chosen as an exchange student to China.
—Congratulations! ____________ .
| A．That’s something | B．You did a good job | C．That’s all right | D．You got it |
Jack doesn’t smoke now, but he ______________ for almost twenty years.
| A．was smoking | B．smoked | C．has smoked | D．had smoked |