The population of the world still now.
A. will; grow B. has; grown C. is; growing D. is; grown
— Excuse me. Is the library open all day?
— . Only from 8 a.m. to 4 p.m..
A. Yes, of course B. That's right C. Sorry, I'm not sure D. Sorry, I'm afraid not
Keep off the drugs（毒品）, you and your family will be in great danger?
A. and B. or C. but D. so
— May I come in? I'm sorry I am late.
— Come in, please. But could you please tell me ?
A. how do you come to school B. what were you doing then
C. who you talked with D. why you are late again
Jane is one of the students in the class have ever been to China.
A. who B. whose C. which D. whom
“Don't to strangers on your way to and from school”, mother often to me.
A. speak; says B. speak; tells C. talk; speaks D. talk; tells
