― Why ______ you stay in the countryside, where it’s not convenient to go shopping?―But I’ve found it rather valuable for my health.
______addition to being creative, perseverance and diligence are necessary qualities to be a good scientist.
The gold loop discovered in the ancient tomb _____ to be _____ in studying the history of the Jin Dynasty.
Every day Mother sets about her housework ______ she returns from work. Which of the following is NOT OK?
So ______ was he in his work that he didn’t notice that it was raining hard.
The driver’s wrong gearing(挂档) was________ for the backward movement of the car, which accidentally knocked down the old woman.