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
He is afraid of ________ English in public.
#49891
A
speak
B
speaking
C
spoken
D
speaks
Look at the girls        on the street.
#50709
A
play
B
playing
C
to play
D
is playing
Most students hope _______well in their study.
#50687
A
doing
B
do
C
to do
D
does
Colours can make us ______ or sad.
#50065
A
feel happy
B
feel happily
C
to feel happy
D
to feel happily