1.   But it was the longer-range items that were really tough.

2.   It was tough for Steve, really tough for him.

3.   My birthday was really tough because Peter always made a big fuss of it.

4.   The really tough part was to isolate enough allatostatin in the first place.

5.   Two of the nights were really tough.

6.   Women have it really tough.

7.   You can also buy really tough but heavy steel pegs which you can hammer into very hard ground with a rock.

8.   The course was really tough, but the desire to make her family proud of her spurred her on.

9.   He was having a really tough time at work.

10.   The overland route is across some really tough mountains.