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．_________ the teacher couldn’t understand was _________ fewer and fewer students showed interest in her lessons．
| A．What; why | B．That; what | C．What; because | D．Why; that |
When _____ the letter, tears came to her eyes.
| A．she was reading | B．reading | C．she reading | D．read |
Cleaning women in big cities get by the hour.
| A．pay | B．paying | C．paid | D．to pay |
She felt rather _______that she should drive the car at such a___________ speed.
| A．frightening, frightening | B．frightened, frightened |
| C．frightened, frightening | D．frightening, frightened |
The teacher asked us __________ so much noise.
| A．don’t make | B．not make | C．not making | D．not to make |
— He said, “ Light travels much faster than sound.”
— He said that light _______ much faster than sound.
| A．travelled | B．travels | C．had travelled | D．travel |