Our c (a)   y teacher taught us how to mix the two chemicals safely.

我們的化學老師教我們如何安全地混合兩種化學物。

The pill has been re (a)   as the most effective cure for the disease by the Food and Drug Administration.

這款藥已被食藥署認可是對付這種疾病最有效的療法。

Not all the c (a)   e members have attended today's meeting, so we're not able to reach a decision on this matter now.

並非所有委員會的成員都有參與今日的會議，所以我們現在無法對此事作出決定。

Taiwan International Balloon Festival is held an (a)   y in Taitung County in the summer.

臺灣國際熱氣球嘉年華每年夏天在臺東縣舉行。

The Internet is a great in (a)   n because it has changed the way people communicate.

網際網路是個偉大的發明，因為它改變了人們的溝通方式。

The police officer has been ho (a)   with an award for hunting down the drug dealers. 這個警官因為將毒販緝捕到案而獲獎

Loud music can cause d (a)   ge to people's hearing.

大聲的音樂會對人的聽力造成損害。

It is un (a)   l for Mag to start preparing for the final exams so early.

Mag這麼早就開始準備期末考，真是太不尋常了。

All the j (a)   were amazed at Christina's performance in the singing contest, so they awarded her first prize.

在歌唱比賽中，所有評審都對Christina的表現感到驚豔，所以他們頒給她第一名。

In the s (a)   t of cooperation, Alfred would help us with our work.

本著合作的精神，Alfred會協助我們的工作。

Dora must be in a bad m (a)   , or she wouldn't have pulled a long face.

Dora一定是心情不好，不然她不會板著臉。

Susan decided to take a day off since she had a high fever and kept co (a)   .

Susan決定請假一天，因為她發高燒且不停咳嗽。