--- do I need to feed the pet dog?
---Twice a day.
| A．How long | B．How much |
| C．How soon | D．How often |
Having failed my French exam,I decided to___science subjects
| A．stick to |
| B．insist on |
| C．concentrate on |
| D．adapt to |
The girl in the snapshot was smiling sweetly,her long hair___
| A．flowed in the breeze |
| B．was flowing in the breeze |
| C．were flowing in the breeze |
| D．flowing in the breeze |
The largest collection ever found in England was one of about 200,000 silver pennies,all of___over 600 years old
| A．which |
| B．that |
| C．them |
| D．it |
Under the tree was a little girl sitting still,eyes___on the sky,listening to MP3 music
| A．fixed |
| B．fixing |
| C．are fixed |
| D．are fixing |
John received an invitation to dinner,and with his work___,he gladly accepted it
| A．finished |
| B．finishing |
| C．having finished |
| D．was finished |