Из разности чисел 30 и 12 вычесть сумму чисел 6 и 11

Insert "to" where necessary.

1. There's little else you could do but .....  keep your fingers crossed.

a)to;b)-

2. Our house is not easy .......  find.

a)to;b)-

3. You'd better .........  have your hair cut.

a)to;b)-

4. I saw him ..........  act in "Hamlet" and I liked him immensely.

a)to;b)-

5. Why not …………………... save a little money if we can.

a)-;b)to

6. How dare you ..........  come here after all you have done?

a)to;b)-

7. Do you happen .........  remember the number of the flat?

a)to;b)-

8. You should go out and have fun rather than ..  sit here crying.

a)to;b)-