A）按要求转换下列句型，每空限填一词。
56．Jack did well in maths．（就划线部分提问）
Jack in maths？
57．Do these students often sing English songs？（变成被动语态）
English songs often by these students？
58．At the age of four，she began to learn dancing．（改写成复合句）
She began to learn dancing ．
59．I didn't bring him an umbrella．（变被动语态）
An umbrella wasn't him．
60．Tom felt unhappy， ？（完成反意疑问句）
B）根据上句完成下句，使两句表达的意思基本相同，每空限填一词。
61．Mother doesn't let me go out alone at night．
Mother me out alone at night．
62．We had to drive slowly，because of the fog．
We had to drive slowly， the fog．
63．In 1620，forests covered about half of the USA．
About of the USA by forests in 1620．
64．They got up early in order to catch the first bus．
They got up early they could catch the first bus．
65．There are twenty more trees to be planted．
There are trees to be planted．
参考答案：
56．How did；do 57．Are sung 58．when she was four 59．brought to 60．didn't he 61．stops／keeps；from going 62．thanks to 63．fifty percent；was covered 64．so that 65．another twenty
