-- I called you this morning, but nobody answered it.-- Oh, we ______ some shopping at the supermarket.
#51991
A
are doing
B
were doing
C
have done
D
did
推荐题目
 I want to watch TV. Please ________.
#56182
A
turn it on
B
turn on it
C
turn it off
D
turn off it
I’m very tired, Let’s stop ________ a rest.
#61900
A
have
B
having
C
to have
D
had
 The disabled people shouldn’t ____________. We should help them.  
#57220
A
look down on
B
be looked down
C
be looked down on
D
be looking down on