按要求转换句型

按要求转换句型
1.Bob bought a key ring and Candy bought a key ring,too.(同义句)
____ Bob ____Candy bought a key ring.
2.I don't like them and Bob doesn't like them either.(同义句)
____ I ____Bob like them.
3.That watch is too expensive.I can't buy it.(同义句)
That watch is too expensive _____ _____ to buy.
4.I will get my mother a purse for her birthday.(同义句)
I will get a purse for my mother ____ ____ her birthday.
5.Bob thinks the big dictionary is too heavy.(否定句)
Bob ____ ____ the big dictionary is too heavy.
应该是either
我的第4题没错