It is suggested that some skills teachers ________ to teach the children in these mountainous areas .
#102990
A
must be sent
B
be sent
C
should send
D
should send for
推荐题目
Ten years later, the prisoner of war ___ free and regained his ___.
#102717
A
was set, freedom
B
was set, free
C
was set, freely
D
set, freedom
This machine __________ It has worked for years.
#102524
A
didn’t work
B
wasn’t working
C
doesn’t work
D
isn’t working