-- Do you know why he left so early ?
--__________ for the English test, I guess.
| A．To study | B．Study | C．Studied | D．Studying |
The firemen soon ________ the big fire.
| A．put off | B．put up | C．put out | D．put on |
Mom, I’m old enough to wash ________ own clothes and ________. You can have a rest after work.
| A．my; your | B．my; yours | C．your; my | D．yours; mine |
Do you know a spaceship flies at about nineteen kilometers ________ second?
| A．the | B．a | C．/ | D．an |
— Morning, boys and girls! Please try your best in today’s exam! Good luck to all of you!
— ________
| A．Sorry, I won’t. | B．Never mind . | C．Thanks! | D．Congratulations! |
—Sir, could you please put out your cigarette? This is a smoke-free (无烟的) school.
—＿＿＿＿＿＿
| A．I'm sorry about this. | B．No problem. |
| C．Sure, I'd love to. | D．Never mind. |