Clinical evidence began to ______ suggesting that the new drugs had a wider range of useful effect than had been predicted from experiments in animals.
59. That was really a splendid evening. It’s years ________ I enjoyed myself so much.
6.You _____ pay too much attention to your reading and listening skill, for they are of great importance.
2. The driver was at ____loss when ____word came that he was forbidden to drive for speeding.
29. I don’t think Peter is too young to take care of the pet dog ______.
34. It is said that the old man, ______ abroad for nearly 20 years, is on the way to his motherland.