Modal verb SHOULD

I think you (a)   hard, so that you don't fail in the next exam. (Study)

You (a)   Math now. Tomorrow we will have a quiz. (Study)

What (a)   for you, to make you believe me? (Do - I)

Somebody stole her laptop from her car. She (a)   her car window closed. (Leave)

I think Ratu & Perdana (a)   early because they are still under 17 years old. (Marry)

The speed limit is 55 miles an hour, but Tom is driving at 70. He (a)   over the limit. (Drive)

A : Look at all those broken street lamps.

B : They (a)   (be) repaired a long time ago

You look so pale. You (a)   (get) some rest.

Why are you here? You ... (clean) your class. It is your turn.

(a)  

Susan has problem with her teeth. She (a)   (eat) too much shocolate.