We won’t give up ______________we should fail ten times.
| A．even if | B．since | C．whether | D．until |
Thank you for sending us ____ fresh vegetables of many kinds. You have done us ____ a great service.
| A．不填；a | B．the；a | C．不填；不填 | D．the；不填 |
—Your book, Tommy?
—No, Mom, it’s my friend’s.
—Remember to return it to ____ name is on it.
| A．what | B．which | C．whose | D．whosever |
I’d like to live somewhere ____ the sun shines all year long.
| A．which | B．that | C．where | D．in which |
He is only too ready to help others, seldom, ____, refusing them when they turn to him.
| A．if never | B．if ever | C．if not | D．if any |
Everyone was on time for the meeting _______Chris, who’s usually ten minutes late for everything.
| A．but | B．only | C．even | D．yet |