--The river used to be clean. How does it become dirty?
-- There are many factories ________ waste water into it.
A. pouring B. pour C. poured
I am a teacher. She is a teacher,
A. to B. too C. two
—Your English is very good.
—
A. Thank you. B. No, no. C. It’s not good.
Does Mr. Leea big head?
A. has B. have C. is
—Is your name Brown?
—
A. Yes, it is. B. Yes, I am. C. No, I’m not.
— Are those______ shoes?
---No ,they’re not .
A. your ;my B. your; mine C. yours; my