1.
Have you heard anything about the accident _____ in their school yesterday ?
a. happend b. happening c. which happened d. which happening
2.
The light is an invention ______ Edison.
a. attributed to b. attributes to c. attributing to d. is attributed to
3.
The pain lingered on. It kept me ______ most of the night.
a. wake b. waking c. awake d. awoke
不能直接用happened吗