Look! David is helping his mother _______ the room.
#39685
A
is cleaning
B
cleaning
C
cleans
D
clean
推荐题目
 Chinese speed skater, Li Jianrou was a dark horse. She     to win the gold medal before the race started.
#36170
A
didn’t expect
B
wasn’t expected
C
wasn’t expecting
D
hasn’t expected
--When _______ you _______ to learn to skate?--Five years ago.
#41709
A
do , begin
B
will , begin
C
have , begun
D
did , begin
He often_______ tennis with his friends. Now they_______ tennis at school.
#38513
A
play; play
B
plays; playing
C
plays; are playing
D
playing; are playing