The elderly need special care in winter，as they are________to the sudden changes of weather.
| A．stubborn | B．generous | C．humorous | D．sensitive |
It’s difficult to _______ a conversation with someone who only says “yes” and “no”.
| A．put up | B．pick up | C．keep up | D．live up |
----- 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. /, /