If we go on using energy so wastefully, __________ are that our oil wells will be dried up before new energy sources can be found to replace oil.
A.chances | B.opportunities | C.questions | D.problems |
. Mary is barely a diligent girl, as it is the fourth time she has been sleeping in class, ________?
A.is she | B.isn’t she | C.isn’t it | D.hasn’t she |
. Brian told you that there wasn’t anyone in the room at that time, ________?
A.was there | B.wasn’t there | C.didn’t be | D.did he |
. I think she always disagrees with him, ________?
A.do I | B.don’t I | C.does she | D.doesn’t she |
. – Don’t forget to come to my birthday party tomorrow.
– ________.
A.I don’t | B.I won’t | C.I can’t | D.I haven’t |
. – Do you think it’s going to rain over the weekend?
– ________.
A.I don’t believe | B.I don’t believe it |
C.I believe not so | D.I believe not |