单项选择题
A．whom writes B．whom write C．who write D．who writes
The pen（）on the floor for ten minutes, but no one has p...
单项选择题The pen（）on the floor for ten minutes, but no one has picked it up.
A．is lying B．has lain C．has been lying D．lay
—What do you think of the novel—Oh, excellent. It's wor...
单项选择题—What do you think of the novel—Oh, excellent. It's worth（）a second time.
A．to read B．to be read C．reading D．being read
Sam: Was the driving pleasant when you went to Mexico l...
单项选择题Sam: Was the driving pleasant when you went to Mexico last summerLili: No, it（）for four days when we arrived, so the roads were very muddy.
A．was raining B．had been raining C．would be raining D．rained
