It’s good for health to sleep with the windows _______ in hot summer.
#49873
A
close
B
opened
C
closing
D
open
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It’s necessary us English well.
#49684
A
for , to learn
B
for , learning
C
of , learning
D
of , to learn
— I hear you have got an opportunity _________ at the children’s hospital.— Yes, I love children and it will be a good experience for me.
#50974
A
to volunteer
B
helping
C
volunteering
D
to teach