--Have you done your homework ?
--Yes, I _____ it ten minutes ago.
A. finish B.
have finished C. finishe
d
Nothing _________ difficult if you work hard.
A. am B. is C. are
--How many people will come to Beijing this year?
--It’s hard to say ._________ people, I think.
A. Three millions B. Three millions of C. Millions of
I can’t stand __________for buses so long.
A. to wait B. waiting C. waits
--Is there ________in today’s newspaper?
--No , nothing is important.
A. anything important B. important anything C. something important
--_________is the population of the world ?
--_________about 7 billion.
A. How many; It’s B. What; It’s C. What; They’re
