After her son’s death, the old lady __________ sit at the window, deep in thought.
| A．would | B．should | C．could | D．might |
-----“I think the teacher is wrong, _____?”
------“No, I don't think so.”
| A．don't you | B．don't I | C．doesn't he | D．doesn't she |
What do you imagine _____ him from going?
| A．to prevent | B．preventing | C．to have prevented | D．prevented |
My friend Mary is _____ beautiful girl and _____ girl everyone likes to work with.
| A．a, a | B．a, the | C．the, a | D．the, the |
She may have missed the train, in _____ case she won't arrive for another hour.
| A．whose | B．that | C．which | D．what |
Many countries, for example, Mexico and Japan, _____a lot of earthquakes.
| A．have | B．having | C．to have | D．having had |