1£®Not until he retired from teaching three years ago ________ having a holiday abroad

A£®did he consider                           B£®he had considered

C£®had he considered                         D£®he considered

2. The glass of water is too hot. I prefer some cold ________ water.

A. to boil¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡       B. having boiled

C. boiled¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡        D. boiling