—Hey! Here is a message on my cell phone, telling me to send money to...

—Delete it ! It's a trick. Many people________ by such tricks.

A. has been cheated                                    B. have been cheated

C. were cheated                                     D. was cheated

—Hi, Bob, I can't find my electric shaver!

—Sorry, I ________ it and I guess I put it on the top shelf with my things.

A. used                                            B. had used

C. am using                                        D. was using

Einstein liked Bose’s paper so much that he ______ his own work and translated it into German.

A. gave off   B. turned down   C. took over   D. set aside

He is a student at Oxford University, _______ for a degree in computer science.

A. studied        B. studying       C. to have studied       D. to be studying

Maria has written two novels, both of ________ have been made into television series.
    A. them     B. that       C. which                                D. what

The number of foreign students attending Chinese universities ________ rising steadily since1990. 

A. is         B. are         C. has been         D. have been 

 She was surprised to find the fridge empty; the child _____ everything!

A. had been eating    B. had eaten   C. have eaten    D. have been eating

The two girls are so alike that strangers find_____ difficult to tell one from the other.

A. it   B. them   C, her   D. that

Find ways to praise your children often,_____ you’ll find they will open their hearts to you.

A. till　 B. or　 C. and　 D. but

-------He says that my new car is a ____________ of money. 

-------Don’t you think those words are just sour grapes?

A. lack        B. load         C. question         D. waste