Mother went shopping; __________, I cleaned the house.
#91773
A
while
B
when
C
however
D
meanwhile
推荐题目
 Lily,      get so good a dictionary?
#91739
A
where do you think can I
B
do you think where I can
C
do you think where can I
D
where do you think I can
Mike is excellent in math, _________, he didn’t pass the final exam this time.
#91784
A
for example
B
believe it or not
C
as usual
D
as a matter of fact
The expert offered us another piece of advice , ___ of great help to our program. 
#91750
A
I think it is
B
I think which is
C
which I think it is
D
which I think is