Because they usually receive the same score in the exams, there’s often disagreement as to ______ is the better student, John or Mary.
35. The careless man received a ticket for speeding. He ___ so fast.36.
34. This is____ a difficult problem ____ all of us can't work it out.
33. Only when ____in the afternoon _____able to leave.
32. ---- I usually take a walk at night.---- ___ do that.
39. Is this the reason ____ at the meeting for his carelessness in his work?