_______naturally by the skin when exposed to ...

_______naturally by the skin when exposed to sunlight, Vitamin D is needed for healthy bones, teeth and muscles.

A. Making　　 B. To make

C. Made　　 D. Make

高三英语单项填空困难题查看答案及解析

______ to the sunlight for too much time will do harm to one’s skin.

A. Exposed　　　　 　　 B. Having exposed

C. Being exposed　　 D. After being exposed

高三英语单项填空中等难度题查看答案及解析

　　 to sunlight for too much time will do harm to your skin.

A.Exposed 　　　　 B.Having exposed

C.Being exposed　　　 D.After being exposed

高三英语单项填空中等难度题查看答案及解析

Experts say ________ to sunlight for too much time will do harm to one’s skin.

A. exposed                           B. having exposed              C. being exposed                D. exposing

高三英语单项填空中等难度题查看答案及解析

Being exposed for a long time_____strong sunlight might seriously damage your skin.

高三英语单项填空简单题查看答案及解析

.Being exposed for a long time________strong sunlight might seriously damage your skin.

A. in       B. under    C. to    D, over

高三英语单项填空简单题查看答案及解析

Vitamin D gets produced when animals are exposed to direct sunlight, for＿reason, it

is always advisable to give them chances to spend time in the sun.

A. whose 　B. that 　

C. which 　D. its

高三英语单项填空中等难度题查看答案及解析

______to the sun for too long, I think, can hurt your skin.

A. Being exposed    B. To expose         C. Exposing     D. Exposed

高三英语单项填空中等难度题查看答案及解析

____ directly to the sun in summer will do great harm to our skin.

A. Be exposed               B. Being exposed              C. Exposing                D. Exposed

高三英语单项填空中等难度题查看答案及解析

_______ to the sunshine for too long in summer, your skin will get burnt.

A. Being exposed   B. Exposing    C. Exposed          D. To expose

高三英语单项填空中等难度题查看答案及解析