[ Should, Should not have ]
I ___________ _______________ more politely. (act)
A. shouldn’t have acted
B. should has act
C. acting
D. should have acted
Select your answer:

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Grammar › ViewIt was not that we _______.
A. Didn’t tried
B. Don’ tried
C. Doesn’t try
D. Didn’t try
Vocabulary › View
The teacher drew an _____ between the human heart and a pump.
A. composition
B. analogy
C. characteristic
D. descend
