John was so sleepy that he could hardly keep his eyes ______.
| A．open | B．to be opened | C．to open | D．opening |
When ______ different style of articles, we often pay attention only to the differences of their characteristics of language.
| A． compared | B． being compared | C． comparing | D． having compared |
Leaves are found on varieties of plants, but they differ greatly ______ size and shape.
| A． on | B． in | C． from | D． by |
The young dancers looked so charming in their beautiful clothes that we took ______ pictures of them.
| A． many of | B． masses of | C． the number | D． a large amount of |
A healthy life is frequently thought to be ___ with the open countryside and home grown food.
| A． tied | B． bound | C． involved | D． associated |
This is Mr. White, ______ I think has something interesting to tell you.
| A． which | B． whom | C． that | D． who |