1. China has declared her intention never to be the first to use nuclear weapons and has _________the nuclear powers to make similar declarations.
A. called in B. called on
C. called for D. called at
2. China is trying to keep her population _________ down.
A. birth B. increase
C. size D. growth
3. Christmas is coming. It's just round the _________ .
A. bend B. turn
C. curve D. corner
4. Circus tigers, although they have been tamed, can _________attack their trainer.
A. unexpectedly B. deliberately
C. reluctantly D. subsequently
5. Communication is the process of _________a message from a source to an audience via a channel.
A. transmitting B. submitting
C. transforming D. switching
6. Competition, they believe, _________ the national character rather than corrupt it.
A. enforces B. confirms
C. intensifies D. strengthens
7. __________Conditions led to outbreaks in many cities.
A. disaster B. calamity
C. famine D. accident
8. __________Conflict among city-states caused the eventual decline of Greek civilization.
A. Continuous B. Continual
C. Constant D. Contrary
9. Congress was then in session, and a fierce ________ was going on over ratification of the treaty.
A. discussion B. debate
C. quarrel D. contention
10. Convenience foods which are already prepared for cooking are__________in grocery stores.
A. ready B. approachable
C. probably D. available
