完成句子
根据所给汉语意思，用单词或短语完成下列英语句子。（共5小题，计5分）
椅子下面有一个网球和两个足球。
________ ________ one tennis ball and two soccer balls under the chair.
她的祖父母是教师吗？
________ ________ grandparents teachers？
你哥哥喜欢在电视上看排球比赛吗？
Does your brother ________ ________ volleyball games on TV.
Sally 今天没有很多家庭作业。
Sally ________ ________ much homework to do today.
对我来说，制作模型飞机很困难。
It’s ________ for me to ________ model planes.
Be polite，Henry．It's rude to （指向） at others like that．
One Belt，One Road（一带一路）is helpful for the development of the （国际的）trade．
The （直达的）flight from Yangzhou and Taizhou to Korea was opened on April 8，2016．
At my first art show，a famous professor praised me and （鼓励）me to keep trying and make more wonderful pictures．
The （人口）of China may increase fast because of the second﹣child policy（政策）．