Complete the following sentence as required. (根据所给要求完成句子。1—7小题每空限填一次) （共14分）
A dictionary is useful for us to understand new words. (改为复数形式)
______ ______ useful for us to understand new words.
Mary paid about $1,500 for a trip to Europe with her mother.（对划线部分提问）
______ ______ did Mary pay for a trip to Europe with her mother ?
Mark returned to his country after he finished university abroad. (保持句意基本相同)
Mark ______ ______ to his country after he finished university abroad.
I am not good at playing badminton. Gary isn’t either. (合并为一句)
______ Gary ______ I am good at playing badminton.
“Why does Jim send flowers to Ms Grey every September ?” he wondered. (改为宾语从句)
He wondered why ______ ______ flowers to Ms Grey every September .
Wesley translates two French storybooks into Chinese every year. (改为被动语态)
Two French storybooks ______ ______ into Chinese by Wesley every year.
the amusement park , after, are going to , they, the speech contest (连词成句)
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