Our English teacher is ill and we are all her health.A. concerned aboutB. careful ofC. g

问题补充：

Our English teacher is ill, and we are all her health.

A. concerned about

B. careful of

C. grateful for

D. calm down

答案：

(答案→)A. concerned about

B. careful of

C. grateful for

D. calm down

解析：考查固定词组。Be concerned about…关心…；be careful of当心…；小心；be grateful for对…感激；calm down镇定；句意：我们的英语老师病了，我们都很担心他的健康。故A正确。