New medicines and instruments ______ every day to extend life.
#105334
A
develop
B
are being developed
C
are developing
D
have developed
推荐题目
“The moment ________ soon”，he thought to himself，waiting nervously.(2012·湖南)
#105316
A
came
B
has come
C
was coming
D
is coming
The College Entrance Examination________near, so you should be prepared for it.
#105333
A
is drawing
B
draws
C
drew
D
has drawn
5.---Have you handed in your schoolwork yet? ---Yes，I have. I guess it ____ now.
#105345
A
has graded
B
is graded
C
is being graded
D
is grading
Today many physical bookstores ________ down with financial difficulties, inflexible management strategies and competitive pressure from online bookstores.
#105310
A
had closed
B
having closed
C
being closed
D
are closing