Generally speaking, when ____ according to the directions, the drug has no side effect.taking B. taken C. to take D. to be taken
Now researchers say that middle age________be the most fruitful time of life, full of new growth and development.
When asked by the police, he said that he remembered________at the party, but not________.
________all over the hills and around the lake are wild flowers of different kinds.
As I will be away for at least a year, I'd appreciate________from you now and then________me how everyone is getting along.
When Mr. Brown got off the train, he found himself________by his students.