三个相同的容器内水面高度相同，甲容器内只有水，乙容器内有木块漂浮在水面上，丙容器中悬浮着一个小球正确的是（　　）

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下列各项中，没有语病的一项是（   ）

移栽茄子秧、黄瓜秧时，其根部总是带有一个土坨，这是为了（　　）

1922年，美、英、日、中等九国代表在华盛顿签署了关于中国问题的《九国公约》，此条约的最大受惠者是(     )

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1）每处错误及其修改均仅限一词；

2）只允许修改10处，多者（从第11处起）不计分。

    I am really pleasing that you will come to our school to study Chinese. I think you would face some difficulties in your study because Chinese is not easy to learn. You will also suffer homesickness because of living far away from your country, and there is no need to feel worried. Our classmates are very friendly and easygoing, so it'll be easy for you to get used to the life there. I'll introduce you to my family and friends, and you won't feel alone. Besides, it'll also help me to learn Chinese and Chinese culture. In the word, I'll try my best to make you feel at your home. I'm looking forward to meet you.