London ______ on the River Thames.
A. stands
B. stand
C. is standing
D. will stand
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Father ______ smoke.
A. isn’t
B. aren’t
C. doesn’t
D. never
He hardly ever ______ a mistake when he writes.
A. make
B. makes
C. is making
D. is going to make
Now I ______ the cake mixture into this bowl and _____ a drop of vanilla essence(香草精油).
A. am put, add
B. put, add
C. am putting, am adding
D. puts, adds
I hope you ______ a good time.
A. are having
B. has
C. had
D. have