I happened_______with him when he was hit by a stone.
| A．I was talking | B．talking | C．to talk | D．to be talking |
_______ apple four hundred years ago led to the law of gravity while _______ apple designed by Steve Jobs has changed our life greatly.
| A．The; an | B．An; an |
| C．An; the | D．The; 不填 |
One more month，______these baby birds will fly out of their nest.
| A．or | B．and | C．but | D．otherwise |
—Excuse me, could you tell me the way to the British Museum?
—Sorry, I’m a stranger here.
—_______.
| A．Thanks, anyway | B．It doesn’t matter |
| C．Never mind | D．No problem |
—Shall we go to see the snow sculptures (雕塑)?
—______.
| A．Sorry, I promise |
| B．It depends on the weather |
| C．Never mind |
| D．It doesn’t matter |
Many English learners find that ______ pronunciation helps them improve a lot.
| A．contributing to |
| B．consisting of |
| C．taking control of |
| D．paying attention to |