1：do you parents often help you ?yes,l think it's important____parents to help up to face problems.A:of B:to C:for D:at2:ln the modern world ,cars are more and more widely _____in people's lifeA:use B:using C:used D:to use
參考答案:1.C important for sb. to do sth
2.C 副词+过去分词的搭配形式。
