The dangerous virus ____ in the next few weeks in the laboratory can cause fatal diseases.
#94685
A
studying
B
studied
C
to study
D
to be studied
推荐题目
—What did you do when you saw the girl     in the flood? —I did what I could     .
#96030
A
struggling; to pull her up
B
struggle; pull her up
C
struggling ; to pull up her
D
struggle;pull up her
---What made the students so upset?---______ to go to the movie.
#96529
A
Having not been allowed
B
Not having allowed
C
Because of not having allowed
D
Not having been allowed