根据下列短文内容，在短文后的空格处填上一个恰当的词，使短文完整、通顺。

　　 No one was left in the museum now, and John was 　77 　around to see if everything was

　all fight．Suddenly he saw a beautiful painting lying on the floor．John 　78 　it up and gave

　it to the director of the museum．　　 ．

　　 The director called several museums to check and see 　79 　it was a stolen painting，but

　 no one claimed(认领) it．　 　80　 　the director decided to hang it in the museum. All the

　 experts(专家)　 came to look at the painting．Each one said it was beautiful and had very deep

　 meaning．The director was 　81 　to have such a wonderful painting in his museum and

　 congratulated John on his discovery．

　 　Some weeks 　82 　．a woman and her little son came to the museum．While they were

　looking at the new painting，the little boy 　83 　to cry．The director went over and asked

　him，“Why are you crying?’’

　　 The child pointed to the painting and said，“That’s my painting 　84 　the wall and I

　want it 　85 　．”

　　 “Yes，”said his mother, “He 　86 　it on the floor a few weeks ago．If you look

carefully, you can see the name on the painting．”

71．格林先生正忙于为会议做准备。

　　 Mr.Green is ______ ready for the meeting．

70．If you don’t do your homework carefully, you will make many mistakes．(同义句)

________　 your homework carefully, ________ you will make many mistakes.

69．Someone saw him swim in the lake yesterday．(变为被动语态)

　 　He was ________ ___________ swim in the lake yesterday．

68．She’s already finished her work．(改为一般疑问句)

　 　_____ she finished her work_____?

　 根据所给提示，完成句子。每空一词，含缩略词。

67．The small city has some beaches and mountains．(变为否定旬)

The small city doesn’t have _______ beaches ______________ mountains·

41．____ buy some meat? We don’t have any food in the fridge．

　　 A．How about　 B．Why don’t you　 C．Let’s 　D．Why you not

40．I asked him ______．

　 　A．what did he eat this morning　　 B．what he eats this morning

　 　C．what he ate this morning 　　　D．what does he eat this morning