Решение:
- He's strange; I can't make him out.
- They made up an excuse for being late.
- We all should try to make up with friends soon after silly tiffs (ссоры).
- I've made up a story.
- I can't make out the meaning of this poem.
- He made up with his sister yesterday.
Ответ: make him out; made up; make up with; made up; make out; made up with.