Peter has gone to Beijing, but I’m wondering why he ________ in such a hurry.
A. left B. has left C. leaves D. was leaving
The lack of eco-friendly habits among the public is thought to be a major ____ of global climate change.
A.result B.cause C.warning D.reflection
Arriving home，the boy told his parents about all the________which occurred in his dormitory.
A.occasions B.incidents C.matters D.accidents
There’s a _____ in our office that when it’s somebody’s birthday, they bring in a cake for us all to share.
A. tradition B. balance C. concern D. relationship
We have various summer camps for your holidays, You can choose ____ based on your own interests.
A. either B. each C. one D. it
—Would you like tea or coffee?
— , thank you. I’ve just had some water.
A. Either B. Both C. Any D. Neither
