Look at the blackboard

Where were you？I waslooking for you.

Look at the time. We aregoing to be late.

The photo looks nice

Youlook great

Helooks like his brother

Thatlooks like a funny movie.

lookafter

Who's going to look after your sister tomorrow?

I'm looking after his house while he's in hospital.

Don't worry about me—I can look after myself 

lookat

I haven't hadtime to look at (= read) the ppt yet.

The company is looking at ways to recycle the waste

lookdown on

She looks down on people who haven't been to college.

lookforward to

I'm looking forward to the weekend.

We're really looking forward to seeing you soon

look in (on somebody)

She looks in on her grandparents every Saturday

lookout

Look out! There's a car coming.

lookover

We had looked over the watch before we bought it

lookup

Look up the trains to Shanghai in the timetable.

look up (from something)

She looked up from her book as I started to speak

She looked up at me surprisingly when I said that