—What were you doing when the UFO arrived?— I         with my dog on the street.
#41593
A
walked
B
was walking
C
is walking
D
have walked
推荐题目
They’re late. The film _______ for half an hour.
#41730
A
Has begun
B
has been on
C
started
D
has started
Sam ______ coins since he was eleven years old, and now he has hundreds of them.
#42209
A
collected
B
had collected
C
has been collecting
D
had been collecting
When the teacher came in, all of us _______.
#38764
A
stopped talking
B
stopped to talk
C
stop talking
D
stop to talk
While Helen ________ the piano,her mother came in.
#39922
A
was playing
B
is playing
C
played
D
plays