1.The government has taken measures to ____ the high prices of daily goods to keep the market stable.
A.take down B.bring down C.hand down D.tear down
2.The fact that so many people still smoke in public places ___that we may need a nationwide campaign to raise awareness of the risks of smoking.
A.suggest B.suggests C.suggested D.suggesting
3.When the news comg ____the war broke out,he decided to serve in the army.
A.since B.which C.that D.because
4.By the time Jack returmed home from England,his son ____ from college.
A.graduated B.has graduated C.had been graduating D.had granduated