The earthquake ____ when I ____ some cleaning.
#40065
A
starts, was doing
B
started, was doing
C
was starting, was doing
D
starts, were doing
推荐题目
Mr. and Mrs. Black ______ back _________.
#41874
A
hasn’t come, yet
B
haven’t come , yet
C
haven’t come， already
D
hasn’t come , already
—What were you doing when I called you at 8 p.m. yesterday? —I the piano at that time.
#37831
A
play
B
is playing
C
played
D
was playing