求几道英语练习题的答案（初中）

1、Ms Smith stayed in Beijing for three weeks (对划线部分提问 划线部分为for thee weeks）
--How---- ---long--- did Mr Smith --stay---- in Beijing.
2、There aren't any flowers in the park now. （改同义句）
There --are--- --no--- flowers in the park now.
3、妈妈两年前去加福尼亚了.
My mother --went--- --to--- California --two--- --years--- --ago----.
4、What's your cat's name? (改同义句）
What's ---the--- --name---- of --your---- ---cat---.
5、a , is , dangerous , ride , street , to , on , bike , busy , the , is
It is dangerous to ride a bike on the busy street. (你这道题是不是把it打成is了?）
6、do , world , you , any , is , the , superdog , there , in , think
Do you think there is any superdog in the world?