Either the boy or his sister must have dinner here.
| A．his | B．her | C．their | D．theirs |
It is impossible to cooperate with a person ________ methods are completely opposed to your own.
| A．who | B．whom |
| C．whose | D．whoever |
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 |