问题
选择题
--Do you often hear John ___ in his room? --Yes. Listen! Now we can hear him ___ in his room.
A.sing; to sing
B.singing; singing
C.sing; singing
D.to sing; singing
答案
答案:C
--Do you often hear John ___ in his room? --Yes. Listen! Now we can hear him ___ in his room.
A.sing; to sing
B.singing; singing
C.sing; singing
D.to sing; singing
答案:C