You look_______. What’s up, sir- I can’t find my ticket, but it’s time to check in.

We are ________ in our views of what should be done.

In our exam, the____ careful we are, the ______mistakes we’ll make.

hen the police searched the village,they caught the two ____ that had stolen something from the shop.

They are still very cautious about ________ side effect the new medicine will bring about, although the experts have tried it on about 2000 patients．