45. He had to explain the lesson very clearly ____ .

A. in order that his students to understand it. B. so that his students could understand it

C. so as his students to understand it D. so that his students to understand it

46. We have to start early ____ we won’t be late for the lesson.

A. so that B. so as to C. because D. although

47. They went to the seaside _____ they wouldn’t be disturbed by the noise of the city.

A. in order that B. so that C. so as to D. A & B are correct

48. We stopped at a square _____ have a rest.

A. so as B. in order that C. in order to D. in order

49. My parents got up very early morning ____ pack the car for our journey.

A. so that B. in order that C. so as to D. so as

50. “I spoke slowly. The foreigners could understand me” means “____”

A. I spoke slowly so that the foreigners could understand me.

B. I spoke slowly in order to the foreigners could understand me.

C. I spoke slowly that the foreigners could understand me.

D. I spoke slowly to make the foreigners could understand me.