Jack often _____ music after class.
| A．listens | B．listens to | C．listen to | D．listen |
We will have no water to drink _________ we don’t protect the earth.
A. until B. if C. unless
I got an e-mail this morning. It was ________ my pen pal, Tony.
A. from B. for C. to
– Would you like some coffee?
– No, thanks. I ________ drink coffee. Coffee is bad for my stomach.
A. nearly B. usually C. hardly
– What do you want to be when you grow up?
– ________ engineer like my father.
A. An B. A C. The
– When will you be free, Mr Smith? I want to visit you.
– Er, on Saturday or Sunday. ________ day is OK.
A. All B. Either C. Both