Dark glasses are sometimes worn to ________ the eyes from strong sunlight .
| A．protest | B．guarantee | C．protect | D．prevent |
The boy was so tired that he fell asleep ______ his mother could take off his clothes．
| A．before | B．after | C．while | D．when |
—What’s that noise, John?
—Sorry, Linda．I forgot to tell you．The school library ______．
| A．is rebuilt | B．is being rebuilt | C．was rebuilt | D．has been rebuilt |
The iPhone 4S is Apple’s first major hardware on the market ______ the Oct．5 death of co-founder Steve Jobs．
| A．for | B．to | C．from | D．since |
Don’t bother me．I am listening to the birds ______．
| A．singing | B．sing | C．to sing | D．sung |
He__________from his seat and answered the question__________by the teacher.
| A．raised; rose | B．raised; risen | C．rose; raised | D．risen; raised |