Look

John has to look ___________ his younger brother.

My friend has asked me to look after his dog because_____

Mustafa is looking for his brother because _____

In which book could you look up the names and dates of all the dynasties in Chinese history?

look after

look for

If you don't know his phone number, you can look it _____ in the phone book.

Can you look_____ my pet goldfish for a few days while I am away on holiday?