____ help me?

1.   ?    Can you
2.   ?    Do you can
3.   ?    Can you to
4.   ?    You can

You ____ worry about that.

1.   ?    needn't
2.   ?    must not
3.   ?    don't must
4.   ?    don't need

I ____ smoke

1.   ?    use to
2.   ?    used to

That ____ be Brenda at the door: it's too early.

1.   ?    can't
2.   ?    may not
3.   ?    mustn't

After three days of climbing and hardship they ____ get to the top of the mountain.

1.   ?    could
2.   ?    managed to
3.   ?    succeeded to

It was absolutely irresponsible of you to drive that fast! You ____ killed somebody.

1.   ?    must have
2.   ?    may have
3.   ?    could have
4.   ?    should have

You ____ be rich to be a success in life.

1.   ?    can't
2.   ?    shouldn't
3.   ?    may not
4.   ?    don't have to

____ we go inside? It's such a nice weather and the view from here is spectacular.

1.   ?    Must
2.   ?    Shall
3.   ?    Will
4.   ?    Can

Yesterday we ____ study all day for our exams. We didn't get to bed before midnight.

1.   ?    should
2.   ?    must
3.   ?    had to
4.   ?    were to

The camera isn't working properly anymore. It ____ damaged during the trip.

1.   ?    must
2.   ?    must be
3.   ?    must have
4.   ?    must have been