This cake is very sweet. You _____ a lot of sugar in it. 
#90559
A
should put
B
could have put
C
might put
D
must have put
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 They ______ so tired if they ______ for a whole day.        
#87216
A
wouldn’t feel, didn’t walk
B
wouldn’t feel, weren’t walking
C
wouldn’t be feeling, weren’t walking
D
wouldn’t be feeling, hadn’t been walking
— Why! I _____ get you on the phone. — We ______ basketball on the playground when you phoned. 
#89278
A
didn't; must be playing
B
couldn't; must be playing
C
couldn't; must have played
D
didn't; must have been playing
He hesitated(犹豫) for a moment before kicking the ball, otherwise he _____the goal.
#86703
A
had scored
B
scored
C
would score
D
would have scored
Look! Tom is too sleepy to work.He _______ up watching TV.
#87635
A
mustn’t have stayed
B
shouldn’t have stayed
C
mustn’t stay
D
ought not to say.