Fill in each gap in the following sentences with a suitable preposition

IV. Fill in each gap in the following sentences with a suitable preposition. (6 points)
1.I couldn’t meet Mary because she was ______.
2.It won’t be very long. I’ll be back ______ ten minutes.
3.Please, translate this article ______ English for me.
4.My brother is much better ______ gardening than me.
5.Sam Son beach is always crowded ______ tourists in the summer.
6. We look __________________ the new words in the dictionary.