Wind power is a source of energy we may return in the near future.
| A．on which | B．by which | C．to which | D．from which |
---The boys are not doing a good job at all, are they?
---____________.
| A．I guess not so | B．I don’t guess |
| C．I don’t guess so | D．I guess not |
In the Frick Collection you can also explore Frick’s beautiful home and garden which are_____ .
| A．very worth a visit | B．well worth a visit |
| C．well worth being visited | D．very worth visiting |
On her father’s death, she took the____ of a large house, but unfortunately she lost all her_____ including the house in the fire yesterday.
| A．possession; possession | B．possessions; possession |
| C．possessions; possessions | D．possession; possessions |
Lily had prepared carefully for her English examination so that she could be sure of passing it on her first____.
| A．intention | B．attempt | C．purpose | D．hope |
It shows that____ knowledge of first aid can make a real difference.
| A．a | B．the | C．one | D．/ |