---_____ the population of the world today? ---It’s 6.6 billion.
A. Which is B. How much is C. What’s
--- I don’t like to eat fish and chips in the open air. What about you?
---_____.
A. So do I B. Nor do I C. So I do
What’s wrong with him? I haven’t seen him _____ last Wednesday.
A. on B. since C. by
China has been successful _____ the WTO.
A. to enter B. in enter C. in entering
Did you know _____?
A. how much did the bike cost
B. where he lives
C.if he bought a camera yesterday