-I'm sorry for being late. I should have phoned you earlier.
--. I've just arrived.
| A． | That's no trouble | B． | You are welcome |
| C． | That's all right | D． | You can never tell |
Into the dark apartment ___ , who was quite surprised when everyone shouted “Happy birthday!”
| A．did David walk | B．David did walk |
| C．David walked | D．walked David |
－I’ve decided to compete in the race, but I’m afraid I won’t be the best.
－____. You never know until you try.
| A．Enjoy yourself | B．Go for it |
| C．Do as you like | D．Take your time |
The dog ____attacked passers-by and therefore was kept on a chain by the owner.
| A．eventually | B．fortunately |
| C．frequently | D．similarly |
The boy has great ____ in sports. Trained properly, he’ll make a first-class athlete in time.
| A．motivation | B．influence |
| C．potential | D．possibility |
—Guess what! We’ve got our visas for a short-term visit to the UK this summer.
—How nice! You ____ a different culture then.
| A．will be experiencing | B．have experienced |
| C．have been experiencing | D．will have experienced |