Помогите пожалуйста!!!2. Complete the sentences with the correct form of the

Помогите пожалуйста!!!
2. Complete the sentences with the correct form of the verbs.
a) You'll save water if you ..... a long shower ( not have )
b) We ..... the air if we cycle to the park ( not pollute )
c) If we ..... more trees we'll create a habitat for birds ( plant )
d) If we drop rubbish, the park ..... a nice, healthy place ( not be )
e) You'll save electricity if you ...... off the light when you leave the room ( turn )