20 complete the sentences using the missing words: up, after, forward to, for, through. look ….the baby while i’m out. if you look …. it carefully, you’ll see the mark. the schoolchildren always look … the holidays. i’ve been looking …. my glasses for a half an hour. he looked ….. the book to see if he had read it before. why are you here? tom is looking …. you downstairs. don’t worry! the children will be looked…. he looked …. me for a few moments and then smiled. he asked me to look ….. the document. i am looking …. your letter.

Look after the baby while I’m out.
If you look at it carefully, you’ll see the mark.
The schoolchildren always look forward to the holidays.
I’ve been looking for my glasses for a half an hour.
He looked through the book to see if he had read it before.
Why are you here? Tom is looking for you downstairs.
Don’t worry! The children will be looked after.
He looked at me for a few moments and then smiled.
He asked me to look through the document.
I am looking through your letter.