His carelessness, he didn't pass the weekly exam.
A. Because of B. Thanks to C. Because D. Thanks for
No one knows who salt, but it's very helpful to our life.
A. invented B. discovered C. created D. found out
Jim Mary like watching horror films.
A. Neither; nor B. Either; or
C. Not only; but also D. Both; and
They were busy the project that they forgot the time.
A. too; discussing B. too; discuss
C. so; discussing D. so; to discuss
To my surprise, he could get over difficult problems that he succeeded at last.
A. so many B. such many C. so few D. such few
She bought a digital camera online ____ she would save a lot of time.
A. so that B. as soon as C. no matter D. such that
