— the accident happened? — It’s said to happen on his way to work
| A．Do you know it is where that | B．where is it that do you know |
| C．Do you know where it is that | D．where do you know it is that |
----- Why does Sara know so much about Angkor Wat?
----- She _________ have been there, or….
| A．must | B．oughtn’t to | C．may | D．can’t |
. Some of the scientists held the point ______ the book said was right.
| A．what what | B．that that | C．what that | D．that what |
Hello. You ________68442936. I’m sorry I’m unable to answer your call right now.
| A．reached | B．have reached | C．are reaching | D．had reached |
Later she wrote us a letter, expressing her thanks to us for lending her_____ hand when she was in_______ trouble.
A. /, the B. a, / C. a, the d. /, /
------Is Catherine seriously ill?
------ ____________. She is in hospital and remains unconscious.
| A．I don’t think so | B．I’m not sure | C．I’m afraid so | D．I hope not |