--- Where are the students ? How could they keep us waiting for so long? --- They started an hour ago and they____ be here in fifteen minutes, I think.

---Do you feel like walking to the cinema or      we take a bus? ---I’d like to walk. But since there isn’t much time left, I’d rather we      a taxi.

— I can’t find my dictionary anywhere.— You _____ have lost it while studying in the library.

Smith was overweight, so the doctor recommended that not only           have less fat and meat, but also he           .

But for the arrival of the police,  you __________ killed yesterday.