The place _____ the bridge is supposed to be built should be _____ the cross-river traffic is heaviest

In the exhibition, all of us felt ________ tosee so many ________ things.

Why don’t you join me in the computer games — _____________.

The teacher came into the classroom _______ a smile _______ his face.

Nowadays, many people walk to work ________ Copenhagen Conference calling for living a lowcarbon lifestyle to cope with global warming.[ ]