－___________ do you have a sports meeting at your school?－Every year .
#42180
A
What time
B
How long
C
How far
D
How often
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He has saved lots of people’s________ since he came to this hospital last year.
#42724
A
life
B
live
C
lifes
D
lives
I had a hard time learning math last year.
#39953
A
was hard-working
B
worked hard
C
had trouble
D
didn’t like
Usually, a mother wolf gives birth to five to seven baby wolves .
#40913
A
for a time
B
for the time
C
at the time
D
at a time