English is difficult________. Nobody can learn to use it in a few minutes.
| A．learning | B．to be learned | C．learned | D．to learn |
---Have you paid ? What’s my share of the bill?
---____. It wasn’t very much.
| A．Don’t worry about it. | B．It’s my share. |
| C．None of your business. | D．It’s up to you. |
To her joy, Della first earned the trust of her students and then _____ of her colleagues.
| A．one | B．that | C．ones | D．those |
I have learned a lot about Asian customs, ______ in the small village for three years in the early 1990s.
| A．lived | B．to live | C．having lived | D．to have lived |
---Have you got any particular plans for the coming holiday?
---Yes._____, I’m going to visit some homes for the old in the city.
| A．If ever | B．If busy | C．If anything | D．If possible |
It __be the vocabulary that caused you the problem in the exercise because you know a lot of words.
| A．may | B．couldn’t | C．should | D．needn’t |