一、完形填空
阅读下面短文，掌握其大意，然后从21—30各题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。
On Keeping a Diary in English
Keeping a diary in English is one of the effective ways to improve our English writing ability. Compared with other forms of writing, it is 21 and takes less time. It can help us to develop the habit of thinking in English. If we 22 to this practice, gradually, we'll learn how to express ourselves in English.
