– Do you know who cleaned the blackboard, Tina? -- Yes. John _____. A. do B. does C. did
Listen! Someone_____ singing in the next room.
The more you smile, the _____ you will feel.
-Is Jack often late for school? -No,_____ . He always goes to school early.
Mr. Smith wants _____ a job as a teacher in China.
It is very important for us_____ English well.