题目

多数传染病传染性最强的时期是（   ） A．发病前期       B．发病初期           C．发病中期         D．发病末期 答案：B This is a picture of Mr. Green's family. __1  the picture we can see Mr. green, Mrs. Green, their son Jim  2 their daughter Susan. Mr. Green is _3   in a chair. He is _4  a newspaper. Mrs. Green _5  some housework. Jim is a Middle School student. He is reading a book near the window.Look at   6  She is playing with her toys  _7 the floor. She is Mr. Green and Mrs. Green's daughter, Susan  _8  that behind Susan? It's a _9 . What's the cat doing? It's playing  10 a ball.小题1:A．InB．OnC．AtD．About小题2:A．orB．andC．withD．but小题3:A．sitB．sitsC．sittingD．to sit小题4:A．watchingB．lookingC．seeingD．reading小题5:A．is doing B．doingC．doD．is do小题6:A．the boyB．the little girlC．the studentD．the cat小题7:A．inB．onC．atD．of小题8:A．WhatB．What'reC．What'sD．Which on小题9:A．boyB．girlC．catD．son小题10:A．withB．andC．ofD．at