Topics: Grammar and Vocabulary
I wonder ____ the plane will arrive on time.
A. that
B. whether
C. about
D. how
Select your answer:
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Grammar › ViewThe more _______________ the task, the greater the satisfaction upon completing it.
A. Habitually
B. Annoyed
C. Challenging
Vocabulary › View
What does the word cooperation mean
A. working together
B. playing quietly
C. singing loudly
D. running fast