Change the following into negative sentences

a) Mike is speaking too loudly.

b) We are walking to the park now.

c) They are going by bus.

d) Sheila is crossing the street now.

e) I am sitting in the English class now.

f) You are reading a book on Economics.

Change the following into positive sentences.

a) We are not dancing.

b) They are not watching TV.

c) I’m not driving a car now.

d) My mother isn’t cooking dinner.

e) Lilia’s baby-brother’s not crying.