He always () hard English .
A. studys
B. studies
C. study
D. studied
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Please return the book to the library as soon as you () reading it.
A. finishes
B. will finish
C. finish
D. finished
I will go there when I () time tomorrow.
A. will have
B. have
C. had
D. had had
-How often do you go to the dentist?--- I () every six months.
A. is going
B. went
C. will go
D. go
Jim usually ()his grandparents on Sundays.
A. visit
B. visited
C. visits
D. will visit