Nobody believed his reason for being absent from the class he had to meet his uncle at the airport.
| A．why | B．that | C．where | D．because |
I ______ have watched that movie --- it will give me horrible dreams.
| A．neednt | B．shouldn’t |
| C．couldn’t | D．mustn’t |
The police say radio signals were probably used to set the bomb __________.
| A．about | B．down | C．off | D．out |
--- John went to the hospital alone.
--- If he _______ me about it, I would have gone with him.
| A．should tell | B．tells |
| C．told | D．had told |
Please read the ________ on the bottle and take the right amount of medicine.
| A．explanations | B．descriptions |
| C．instructions | D．introductions |
They did not sell a single car for a month and had to ________ some workers.
| A．lay out | B．lay up |
| C．lay off | D．lay down |