______ to their own work, most of the parents spend little time with their children.
| A． Devoting | B． To be devoted | C． Having devoted | D． Devoted |
------Do you mind if I keep pets in this building?
------_____.
| A．You’d better not, actually. | B．Of course not, but it’s not allowed here. |
| C．Great! I love pets. | D．No, you can’t. |
The speaker raised his voice but still couldn’t make himself ______.
| A．hear | B．to hear | C．hearing | D．heard |
The visiting professor gave us some advice, ____ of great help to our English learning.
| A．I think it is | B．I think which is | C．which I think is | D．which I think it is |
I shall never forget those years I lived in the country with the farmers, has a great effect on my life.
| A．that; which | B．when; which | C．which; that | D．when; who |
Is this the problem ____the teacher explained last week ? Choose the wrong answer :
| A．which | B．that | C．/ | D．the one |