The Parkers bought a new house, but____will need a lot of work before they can move in. A. they B. it C. one D. which 答案:B 解析: B it在句子中的指代The Parkers所买的房子。在英语中,如果所指的是同种事物要用代词it和they(them);如果指代的是同一类事物要用代词one和ones。算式 2500÷400=6……□,□里的数应该是( )。A.1B.10C.100