It is often said that ____teachers lead _______very busy life. A /, / B. /, a C. the, / D. the, a
Rather than _______ here waiting, I prefer _______to find out what on earth has happened.
The novel was concerned ______ the Second World War, while most readers are more concerned _____ the hero's love story.
The police chief advised his men to keep________ and not lose their tempers.
Generally speaking, ______according to the directions, the drug has no side effect.
Please _____all the numbers. Those numbers______10,000.