<pre id="dlcqo"><tbody id="dlcqo"><kbd id="dlcqo"></kbd></tbody></pre>

單項(xiàng)選擇題

The United Nations Conference on Global Environment, which took place earlier this year in Vienna, was a very（） meeting.

A.productive
B.communicative
C.aggressive
D.protective

你可能感興趣的試題

單項(xiàng)選擇題

We watched the plane（）behind the clouds.

A.disappearing
B.disappeared
C.diving
D.dived

單項(xiàng)選擇題

Pipes made of plastic are now widely used in building as they are light and do not become （）in water.

A.ripe
B.instant
C.rotten
D.mature

<samp id="kmvae"><del id="kmvae"><var id="kmvae"></var></del></samp>