People will live ____________ 200 years old in the future.
#49596
A
/
B
be
C
to be
D
in
推荐题目
He often spends much time________playing the piano.
#49131
A
practice
B
practices
C
to practice
D
practicing
Colours can make us ______ or sad.
#50065
A
feel happy
B
feel happily
C
to feel happy
D
to feel happily