[ Grammar ]
The dog _______ its tail.
A. wag
B. wags
C. wagging

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Grammar › ViewIt’s good practice _____ you
A. for
B. at
C. of
D. in
Tenses › View
My father is so tired since he … our garden all day for planting vegetables.
- has prepared
- has been preparing
Question Words › View
Do you know ______________ to bake cakes?
A. Why
B. When
C. How
D. What
Grammar › View
………………….. use your mobile phones in class?
A. Can you
B. Do you have to
C. Must you
D. Do you must
