My best friend Jack looks happy, and he always ________ a smile ________ his face.

There were no tickets _________ for Friday’s performance so we went to the cinema instead.

we have raised 50.000 pounds for the poor children, ______ is quite unexpected.

Hello, Linda! You can _________ a student in our school.

Cold ______ the night air was, he slept soundly because he was so tired after working for a whole day.