—Lisa, what do you think of the job of being a nurse?
—In my opinion, it ____ be difficult sometimes though it seems easy.
| A．should | B．can | C．must | D．need |
相关试题
（安徽卷28）. ----Can you surprised by the ending of the film?
----NO, I____ the book, so I already knew the story
| A．was reading | B．had read | C．am reading | D．have read |
（安徽卷26）.Bob would have helped us yesterday ,but he .
| A．was busy | B．is busy | C．had been busy | D．will be busy |
（全国II 19）. Excuse me. I I was blocking you
r way.
| A．didn’t realize | B．don’t realize | C．haven’t realized | D．wasn’t realizing |
(全国II 15). Linda ，make sure the tables ____ before the guests arrive.
| A．be set | B．set | C．are set | D．are setting |
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