—Those scientists invented a robot to care for kids! —It’s not surprising．They ____ wonders all the time．
#103461
A
worked
B
were working
C
work
D
have been working
推荐题目
－Miss Jones once _________ music at Bardon School for ten years and now is an actress.－No wonder I often hear her sing in the garden. y
#104451
A
had taught
B
taught
C
is teaching
D
has been teaching
For the past year, he ______ a flat with others and trying to save money to open his own business.
#100393
A
has been sharing
B
was shared
C
had been sharing
D
is sharing
—When will you come to see me, Dad? —I will go to see you when you __________ the training course.
#101119
A
finish
B
are finished
C
will finish
D
are finishing
Just as Professor Scott often________it，success is ninetynine percent mental attitude.
#99192
A
gets
B
makes
C
puts
D
means
Half an hour has been made full ______ of _____ the problem.
#101674
A
using; studying
B
use; to study
C
to use; to study
D
use; studying