It’s a fine Saturday morning. There are many people in the park. Many of _【小题1】_are young

It’s a fine Saturday morning. There are many people in the park. Many of _【小题1】 _are young and some are old.
Some children are 【小题2】 games over there. Two boys are playing 【小题3】their toy bats. There is a lake in the park. The water is 【小题4】 . There are some【小题5】 on the lake. 【小题6】 the lake a young man is reading. There is a house near the lake. Beside 【小题7】 house two men are working. Look at that big tree! There are some birds 【小题8】 it. Under it are some men. Four of them are playing cards. One of them is looking at two cats. The cats are【小题9】up the tree. What do they【小题10】 to do? They want to catch the birds.
【小题11】A．theyB．themC．theirD．theirs【小题12】A．playB．playsC．playingD．doing【小题13】A．toB．onC．forD．with【小题14】A．clearB．tallC．funnyD．humid【小题15】A．waterB．boatsC．rainD．buses【小题16】A．BehindB．InC．NearD．Next【小题17】A．aB．/C．theD．an【小题18】A．forB．onC．inD．with【小题19】A．runningB．runC．runingD．runs【小题20】A．to wantB．wantingC．wantsD．wantB

(答案→)B 解析：这篇文章描述了在晴朗的星期六的早晨，公园里有很多人在休闲，很多都是年轻人，也有一些老年人。【小题1】A. they他们，主格 B. them 他们，宾格 C. their他们的，形容词性物主代词 D. theirs他们的，名词性物主代词 根据句意：他们中有很多都是年轻人，有一些老年人。故选B【小题2】根据句意：一些孩子正在那里玩游戏。be+doing表示现在进行时 故选C 【小题3】根据句意：两个男孩子正在玩他们的玩具蝙蝠。play with玩 故选D【小题4】A. clear清澈 B. tall高 C. funny 有趣 D. humid 潮湿 根据句意：公园里有个湖，湖水很清澈。故选A【小题5】A. water 水 B. boats船 C. rain雨 D. buses公共汽车 根据句意：湖里有一些船。故选B【小题6】A. Behind后面 B. In在里面 C. Near靠近 D. Next下一个 根据句意：湖边有一个男人正在读书。故选C【小题7】根据句意：湖的附近有一所房子，这个房子的旁边有两个男人在工作。故选C【小题8】有很多的鸟儿在树的上面，外来物种在树上用in the tree的表达，故选C【小题9】根据句意：这两个猫正在往树上跑。故选A【小题10】根据句意：它们想做什么呢？故选D

我明天再问问老师，叫他解释下这个问题