While watching television, __________.
#90451
A
the doorbell rang
B
the doorbell rings
C
we heard the doorbell ring
D
we heard the doorbell rings
推荐题目
It is recommended by the representatives that traditional cultures _____
#86825
A
should preserve
B
have been preserved
C
be preserved
D
must be preserved
But for their help, we ______ the program in time.
#87442
A
can not finish
B
will not finish
C
had not finished
D
could not have finished
— Write to me when you get home.  — __________.
#90287
A
I must
B
I should
C
I will
D
I can
-----I thought I ______something burning  . -----Really?
#89834
A
smelled
B
was smelling
C
could smell
D
might smell