Viết lại câu sao cho nghĩa không đổi

viết lại câu sao cho nghĩa ko đổi :

1.How wide is the west Lake?

->What..................................................?

2.I never saw the sharks before

->This is................................

3.I didn't have a toothache . They didn't have a toothache

-(neither)...........................

4.Mr.Lan should wear gloves to protect his hands 

->Mr.Lan had better...................