23. — Let’s discuss the question raised last night, shall we?
— There is no hurry for that. I___for a conference.
A.headed | B.was heading | C.am heading | D.have headed |
____you don’t like him is none of my business.
A.What | B.That | C.Who | D.How |
____he will go to work in a mountain village surprises all of us.
A.What | B.That | C.Whether | D.If |
_____more countries can use natural energy in the future remains to be seen.
A.Whether | B.This | C.who | D.If |
It worried her a bit _____her hair was turning gray.
A.while | B.if | C.that | D.for |
.____the meeting should last two days or three days doesn’t matter.
A.That | B.Whether | C.If | D.Where |