After her son died in a car accident, the old lady would sit at the window, ______ out and _______ in thought.

A. looked; lost B. looking; losing

C. looked; losing D. looking; lost

The _____ of electricity added to our difficulty repairing the bridge.

A.absence B. short

C. need D. Break

Charles is believed_______ the floor yesterday; he is always helping others silently.

A.to sweep B. to have swept

C. having swept D. Swept

He is my father and I know he will forgive me for _______ I have done.

A. whatever B. no matter what

C. no matter how D. whichever

Trust him please! When he _______ reading it, he will return the book to you on time.

A. finish B. will finish

C. has finished D. Finished

---I think you should telephone Jenny and say sorry to her.

----______________. It’s her fault.

A.Not possible B. Not chance

C. No matter D. No way

Can you find a sentence situation ___ this phrase can be used?

A. where B. when

C. which D. That

Don’t enter the office unless _______.

A. you have told to B. told to

C. telling D. you are told

The boy student is poor in health now; his parents wish that his health _____when he grows up

A. can improve B. could improve

C. can be improved D. could be improving

He is really an excellent doctor and he is _____ to becoming an expert in this field.

A.in a way B. by the way

C. on the way D. under the way