Collecting stamps as a hobby___________ increasingly popular during the past fifty years.
#86319
A
becomes
B
became
C
has become
D
had become
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Most of the mistakes ____because of carelessness.
#86114
A
weremade
B
aremade
C
hasbeenmade
D
weremaking
— Would you mind if I sing here?— . Look at the sign. It says “Be Quiet”.
#43859
A
Of course not.
B
Better not.
C
Not at all.
D
I don’t mind.
If you don’t put up the sings after school, .
#43542
A
so does Jim
B
so will Jim
C
neither does Jim
D
neither will Jim
Many a student ________ failed in the biology exam,and Tom is the only one of them who ________ decided to give up the course.
#85618
A
have;has
B
have;have
C
has;have
D
has;has