B）根据第一句意思，在第二句空白处填上合适的单词，使两句意思相符。
1．Rose happened to be in the south tower when the plane crashed into the north tower．
____ ____ ____ Rose was in the south tower when the plane crashed into the north tower．
2．I reGREt not having gone to the exhibition held on Thursday．
I reGREt ____ ____ ____ ____ to the exhibition ____ ____ ____ on Thursday．
3．Rebecca found that it was quite necessary to learn to operate a computer．
Rebecca found ____ ____ ____ ____ ____ ____ learn to operate a computer．
4．To her surprise，she found China completely changed．
____ ____ ____ ____ ____ she found ____ ____ ____ ____ ____ in China．
5．Polly admitted having taken away the radio by mistake．
Polly admitted ____ ____ ____ ____ away the radio by mistake．
6．John found two shirts he liked，buthe had trouble deciding which one to buy．
John found two shirts he liked，but hehad trouble deciding ____ ____ ____ ____ ____ ．
7．That China is widely believed to play a more important part in international affairs in the 21st century．
____ ____ ____ ____ ____ China will play a more important part in international affairs in the 21st century．
8．The day was very fine and one of my friends suggested having a picnic in the open air．
____ was ____ ____ ____ day that one of my friends suggested ____ ____ a picnic in the open air．
9．Dustin always says anything that comes into his mind．
Dustin always ____ ____ ____ says his mind．
10．My main problemright now is whether I should ask for help．
My main problemright now is ____ ____ ____ for help．
key: 1.As a boy of 13 2.at the；of his only son’s death 3.where；was born 4.of his own 5.too，for，to do 6.shouldn’t have/not have 7.which/that belonged to；working 8.didn’t；until 9.Something is wrong
