---Who cleaned the classroom?---Mary ________.
#41612
A
can
B
does
C
did
D
is
推荐题目
While she ______ the newspaper, Granny ______ her.
#39657
A
read; was telephoning
B
is reading; telephoned
C
was reading; telephoned
D
read; telephone
The manager ____ nothing about the matter ____ he read his secretary’s report.
#38680
A
had known, when
B
has known, before
C
will know, after
D
knew, until
When you got there, how many guests    in the meeting hall?
#39971
A
had been
B
have been
C
were
D
have had