Choose the appropriate words to complete the sentences. 1) He turned and looked (after/at) us

before he left the room. 2) The bike will serve longer if you look well (after/through) it. 3) The police were looking (for/through) a dangerous criminal in our neighbourhood. 4) I haven't read the book, I've just looked (forward to through) it. 5) They are looking (at/for) a new computer programmer for their office. 6 He had worked hard and was looking (for/forward to) a long holiday. 7. If you want to go away, I can look (after/for) your garden. 8. I looked (at/through) the sky, it was threatening with rain.