—What were you doing at this time yesterday? —I ______ on the grass and playing with Tony. 
#38003
A
sit
B
sat
C
am sitting
D
was sitting
推荐题目
—Will you come to the dinner party?—I won’t come until Jenny      .
#36484
A
will be invited
B
can be invited
C
invited
D
is invited
Her uncle likes playing basketball, he often      it on Sundays, but now he        .
#40464
A
plays, is fishing
B
is playing, fishing
C
play, is fishing
D
playing, fishing
Listen! Someone ______ in the next room.
#39897
A
sing
B
singing
C
is singing
D
are singing