Air is________and of no smell but we can feel its motion when there is a wind.
| A．unavoidable | B．unavailable | C．unaccessible | D．invisible |
She made a vigorous speech in ______ of her boyfriend at the court.
| A．defence |
| B．offence |
| C．favor |
| D．honour |
She didn’t answer my question directly, instead, she ______ me and burst into tears.
| A．turned her back to |
| B．made her way to |
| C．turned her back to |
| D．made her way for |
The old couple are now quite ______ as their son is out of danger.
| A．with ease |
| B．at ease |
| C．at stake |
| D．at last |
______ that he was in great danger, Eric walked deeper into the forest.
| A．Not realized |
| B．Not to realize |
| C．Not realizing |
| D．Not to have realized |
______ in the fields on a March afternoon, he could feel the warmth of spring.
| A．To walk |
| B．Walking |
| C．Walked |
| D．Having walked |