Nowadays people need to buy the tickets when they go into the park.改否定句:Nowdays people ____ ____ to buy the tickets when they go into the park.

问题描述:

Nowadays people need to buy the tickets when they go into the park.
改否定句:
Nowdays people ____ ____ to buy the tickets when they go into the park.

don't need 因为need 是实义动词,所以借助于助动词do

don't need

don't have
Nowdays people don't have to buy the tickets when they go into the park.