He is very sick. I insist that a doctor __________ immediately.
#102576
A
has been sent for
B
sends for
C
will be sent for
D
be sent for
推荐题目
-- Hi, Samantha! When did you arrive in Leeds? --- Last week, I ___________ a different culture since then.
#101020
A
was experiencing
B
will be experiencing
C
have been experiencing
D
had been experiencing
In the past 5 years a great deal of money _____ improving the environment of the school.
#103617
A
is spent
B
has been spent
C
was spent
D
had been spent
How the fire in the dancing hall started _________ a mystery.
#100979
A
to remain
B
remains
C
is remaining
D
is remained