Mary is one of the brightest students who_________ from New York University.
| A．is graduated | B．have graduated |
| C．has graduated | D．are graduated |
—Do you think we are going the right way to the Forbidden City?
—Sorry, I’m not sure．But it _______ be．
| A．might | B．will | C．must | D．can |
The reason for his
success is ______ he worked very hard.
| A．why | B．that | C．whether | D．how |
Word came _______ the students would put off the outing until next week, when they wouldn’t be busy.
| A．that | B．when | C．which | D．whether |
He ______ at once when I promised t
o help him.
| A．cheered up | B．gave up | C．broke up | D．turned up |
After going into the concert hall, the mother _____ a friend and went over to greet him.
| A．searched | B．knew | C．spotted | D．realized |