Tim Bemers-Lee is generally considered ____ the World Wide Web, on which all the information is shared by all.

A.to have founded B.having foundedC. founding D. to found

You ____ pay too much attention to your reading skill. It's so important.

A. cannot     B. should       C. must    D. needn't

After months of voyage, Columbus arrived in_____ later proved a new continent.

A.where  B. what  C.which    D.that

I smoke out of ____ habit, not for ____ pleasure; for I have been in the habit for twenty years.

A. a; the   B. the; a   C. x; the   D. x; x

---Would you please give him the paper the moment he ____?

--- No problem.

A. arrives    B. appearing  C. came   D. reaches

---May I take your order now?

   ---_______.

A. No,I'm in trouble now       B.Yes, we obey orders

C. Yes, I'd like a dish of chicken  D.No, I don't have a choice of meat

―If the traffic hadn’t been so heavy, I could have been back by 6 o’clock.

   ―What a pity! Tina _______ here to see you.

       A. is                                      B. was

C. would be                                D. has been

She would love to have gone to the party, but she _______ extra hours to prepare for a meeting.

       A. had to work                                          B. had worked

C. could work                                    D. would have worked

One of them told me, “This is the first time I ________ to the capital to attend the flag-raising ceremony.”

              A. came                                            B. come

C. have come                                     D. had come

—Don’t you feel surprised to see Bruce at the meeting?

—Yes. I really didn’t think she ________ here.     

A. has been                                 B. had been

C. would be                                D. would have been