— I worked till 4:00 a. m. to prepare a report for my boss.— ________ you look very tired.
The professor has written another book ____ of great importance to computer science.
A fast food restaurant is the place ____, just as the name suggests, eating is performed quickly.
Please tell me the way you thought of ___ the garden.
Is this hotel _____ you said we were to stay in your letter?
It was _____ the old clock that the old man spent the whole morning at home.