So difficult _______ it to acquire a large vocabulary without the help of a teacher that he was close to giving up.

A. he have left   B. have he felt   C. he did felt   D. did he feel

 If ________ in wet sand, vegetables can remain fresh for a long time.

A. being buried  B. having buried   C. buried   D. burying

 The cause he had devoted himself ________ a perfect success.

A. to proved   B. proved   C. to prove   D. to proving

 ---Do remember to charge the battery for 12 hours when you first use it.

--- ________.

A. Thank you, I remember.   B. What for   C. Up to you   D. Got it

 --- Did you make sense of what the man said just now?

--- No, his meaning didn’t ________. Would you explain it to me?

A. get through   B. get off   C. get across   D. get out

 Well, really _____ now is start learning what to do with this software and read a lot of references, learn and practice _______ you can.

A. that you need do; whatever           B as should you do; the longer hours

C. how you should start; the most        D. what you should do; as much as

 At the last place Gary worked, they ______ an annual company picnic. All the employees _____ bring their families along and spend the day at a nearby park. It was great.

A. had to have; had to                 B. used to have; couldn’t

C. would have; didn’t have to           D. used to have; would

 _______ the interview in Boston lasted so long, I missed my connecting flight to New York.

A. Due to         B. So long as         C. As         D. Despite

 The careless driver is _______ for the traffic accident_______ yesterday.

A. to blame; happened        B. to blame; happening    

C. to be blamed; happened    D. to be blamed; happening

 What he has told us about the situation in Iraq simply doesn’t make any________.

A. use      B. reason        C. value         D. sense