Modal verbs

It's a good idea to bring a camera .

You ____________bring a camera.

It isn't necessary to get up early on Sunday.

You ___________get up early on Sunday.

It's not a good idea touch the circus animals.

You ____________touch the circus animals.

Policemen are obliged to wear a uniform at work.

Policemen _______________wear a uniform at work.

It's necessary to be polite to the lunch staff.

You __________be polite to the lunch staff.

It's necessary to switch off your MP3 player.

You ________switch off your MP3 player.

It's not a good idea to chew gum.

You _____________chew gum.

It's not a good idea to talk to others in class.

You ____________takl to others in class.

It's necessary to be on time.

You ________be on time.

It's Sue's duty to answer phone calls.

Sue ___________answer phone calls.

It's a good idea to arrive before the performance.

You ___________arrive before the performance.

It's a good idea to do sport.

You _________do sport.

Tom is ________ at Math.

She dances __________

My dad drives ________

Please talk _____ . There is an exam.

She sings _______

Tom thinks school exams are ____________

He walks __________

Sam is really ________ at Maths