Once environmental damage __________ , it takes many years for the system to recover.

His knowledge of genetic engineering earned him a ______ as an expert in the field.

His brother is very ______ about wines.

His answer was so confusing that I could hardly make any ________ of it at all.

He won＇t succeed any way, ________ hard he tries.

He will ________ his sister by telephone on Monday.

He used to have a _______ of coin-collecting, but he has given it up.

He tried to _______ his nervousness with smile when he made the speech, which made him much more nervous.

He told me that he was very busy at the moment and could only ________ me a few minutes.

Her taste in music ________ with her husband＇s. This makes life more interesting for them.

Her determination to ________ her goal of life motivated her to greater effort.