[ Passive Voice ]
These curtains are so dirty. They must ____ .
A. be cleaned
B. clean
C. cleaned
Select your answer:
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Modal Auxiliary Verb › ViewYou failed in your final test. You …………………….have studied harder
A. Must
B. Could
C. Need
Grammar › View
“It’s a pity she had to pull out of the competition.”
“Yes, especially since she _________ such excellent progress.”
A. is making
B. made
C. had been making
D. has been making