The driver was at ___ loss when _____ word came that he was forbidden to drive for speeding．
| A．a; the | B．/; / | C．the; the | D．a; / |
Butterflies ________ a sweet liquid produced by flowers, which bees and other insects collect.
| A．carry on | B．feed on |
| C．put on | D．focus on |
The girl in the photo was smiling sweetly, ________.
| A．her long hair flowed in the breeze |
| B．her long hair was flowing in the breeze |
| C．her long hair flow in the breeze |
| D．her long hair flowing in the breeze |
Electronic products are ________ must for new generation of ________ college students.
| A．a; a | B．the; a |
| C．a; / | D．the; / |
—Are you finishing your task?
—________. We need no less than three hours more.
| A．Far from it | B．Exactly |
| C．Not a little | D．No wonder |
The novel written by the author ________ best, but five years ago no one could have imagined how great a role he ________ in the literary world.
| A．sells; was to play | B．was selling; was playing |
| C．sold; had played | D．is sold; is playing |