语法填空.阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的词或使用括号中词语的正

语法填空.阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的词或使用括号中词语的正确形式填空. One day,our music teacher said some of the well-behaved children would go on a special trip with her.Later on,some of us ________(choose) to do something special.Luckily,I was ________ of them! Our head teacher told us that we were going to 10 Downing Street,the home of the Prime Minister,________(sing) some special songs for a Jewish festival.We had loads _________ practice and the day came really soon! _________ we got there,we each had a photo outside 10 Downing Street and then we moved to 11 Downing Street,where George Osborne came to greet us.He gave us some ___________(encourage) and wished us well. There we gave our performance,after __________ George Osborne gave us some chocolate money and he said,“I usually don't give away money,but this is __________ exception,” and we all laughed.We also had some other traditional food.Soon it was time for us to leave ______ we didn't want to.It was the _________(amaze) experience I've ever had and I will never forget it.