[ Vocabulary and Grammar ]
Which of the following is a noun?
A. observe
B. observing
C. observation
D. observed
Select your answer:

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Grammar › ViewWhat is the irregular past tense form of “go”?
A. went
B. gone
C. goed
D. goed
Tenses › View
. She usually ______ (wake up) at 7 AM.
A. wakes up
B. is waking up
C. has woken up
D. has been waking up
