30.They ______ be at home. You see, the door is locked from the outside.
A．can’tB．mayC． mustD． mustn’t
練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：不詳 題型：單選題

Naturally, after I tell my brother what to do, he ____ go and do the opposite．
A．willB．mayC．canD．must

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

— You don’t forget when we borrowed that reference book, do you?
— I can’t remember now but ________ sometime last week?
A．might it beB．could it be
C．could it have beenD．should it have been

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


34．He hesitated for a moment before kicking the ball，otherwise he       a goal．
A．had scoredB．would score
C．would have scored D．would be scoring

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


31．----- Oh, my goodness! My laptop must have got stolen．
----- But where _____ a thief have entered the house with all the doors and windows still locked?
A．shouldB．couldC．dareD．did

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

If we had taken such effective measures much earlier, the fiver ____ so seriously now.
A．is not pollutedB．would not be polluted
C．had not been polluted D．would not have been polluted

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


15．---Tom is never late for work. Why is he absent today?
---Something ________ to him.
A．must happen B．should have happened
C．could have happened D．must have happened

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


29.---John, how did your English exam go?
---I thought I ____, but in fact I came in the top 10% in the class.
A．should have failed B．couldn’ t have failed
C．might have failed D．mustn’ t have failed

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

If English ______ included in the examinations, few students would choose it.
A．weren’tB．isn’t C．hasn’t beenD．hadn’t been

查看答案和解析>>

同步練習(xí)冊答案