句型转换。(每空限填一个单词，每词1分，共12分)

小题1:It’s an orange in English．(对划线部分提问)

____________ ___________ this in English ?

小题2:My bike is black． (对划线部分提问)

____________ ____________ is your bike?

小题3:Maria has big eyes．(改写成一般疑问句)

_____________ Maria _____________ big eyes?

小题4:He is my good friend．(改写成复数形式)

____________ are my good ____________．

小题5:Many students in my class like English very much． (改写成同义句)

Many students in my class like English ___________ ___________．

小题6:Are these your erasers? (作否定回答)

No, ___________ ___________．

在采用主、辅起动阀的慢转起动控制回路中，辅起动阀关闭的时刻为（）。

A.慢转电磁阀受控

B.主机转过慢转规定转数

C.主机转速低于发火转速

D.主机转速高于发火转速