A Wechat (微信) is an invention __________ can help people talk to friends, share photo, ideas and feelings freely.
A. which B. who C. whose D. /
_____ of the water _____ polluted. We must try to protect our environment.
A. Two third; are B. Two third; is
C. Two thirds; are D. Two thirds; is
Please tell me______. I have some good news for him.
A. where Robert lives B. where does Robert live
C. where Robert lived D. where Robert live
— You’re new here, ______?
— Yes, I’m from Dujiangyan. I came here last week.
A. don’t you B. are you
C. aren’t you D. do you
I am not sure if Tom____ home. If he________, I'll call you.
A. will come, will come B. comes, will come
C. will come, comes D. will come, come
It_______ me 15 minutes to get to school on my bike.
A. costs B. spends C. takes D.take
