真题练习

645.Many people are still _________ the habit of writing silly things _____ public places.

A.at;at
B.in;in
C.for;in
D.by;for

646.He looked quite healthy ______ he was _____ the age of seventy.

A.when;at
B.because;in
C.into;of
D.during;at

答案解析

645.答案是B;be in the habit of doing sth.有干某事的习惯；in public places=in public 在公共场所。

646.答案是D;at the age of 在…岁的时候。此句前后表示转折关系。