Waste water ____________________into Xiang River.It’s our duty to keep it clean.A. shouldn’t be poured B. mustn’t pour C. can’t pour
Sally is a good girl. She often hello to her teachers when they meet.
It takes him two hours _______ his homework every night.
Every day, I play with my dog forminutes. That makes him happy.
— I think Maths is really interesting. —. I like Maths best.
—your mother free on Saturday? — No. She have any free days.