Old McDonald gave up smoking for a while, but soon _____ to his old way.
#104146
A
returned
B
returns
C
was returning
D
had returned
推荐题目
New technology ______ to make sure that the cars, taxis, buses and trains we use ______ the air.
#104707
A
is used; not to pollute
B
has used; is not polluted
C
is being used; do not pollute
D
has been used; to pollute
Is this the first time that you _____ here?
#103342
A
visit
B
are visiting
C
had visited
D
have visited
— When will you come to see me, Dad ?— I will go to see you when you _____ the training course.
#104999
A
will have finished
B
will finish
C
are finishing
D
finish
The black box is a necessary device on an airplane, which records its speed, direction and whether everything on the airplane______ normally.
#102293
A
will function
B
functioned
C
is functioning
D
has functioned