The boy looks pale and thin. He _____ ill.
| A．can be | B．has to be | C．must be | D．should be |
It is _______ pleasant surprise to learn that Mary is ______ great success as a writer.
| A．a; a | B．/; / | C．a; / | D．/; a |
--- How about putting some pictures into the report?
--- _______. A picture is worth a thousand words.
| A．No way | B．It couldn’t be better | C．All right | D．Not a bit |
I’d like to study law at university _____ my cousin prefers geography.
| A．as | B．though | C．if | D．while |
Most of the guests ______to his wedding are his close friends.
| A．being invited | B．invited | C．inviting | D．had been invited |
--- What makes you so worried?
---- _______.
| A．Because of my weight | B．I’ve lost some weight |
| C．That I’m putting on weight | D．Because I’ve put on weight |