As a student, we should be confident enough to _________any challenges.

I can’t decide which colour to choose. Maybe blue looks good _____ me.— I don’t think so. I’m sure you look more energetic _____ red.

I think it will be difficult ______ a robot _____ the same things as a person.

terrible pollution!—Yes. We have to do something to protect our environment.

Peter, ______ is the Golden Gate Bridge— It’s very long, about 2 miles.