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
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
How happy we are! The holiday we have been looking forward ________at last.
#105324
A
to has come
B
to have come
C
to having come
D
has come
----what do you think of the Chinese language today?----Quite popular. It______ in communicating with other countries. More and more foreign friends are learning Chinese.
#105332
A
plays an important role
B
is playing an important role
C
has played an important role
D
is being played an important role
Since the band announced the release of their new album, the phone hasn't stopped ringing. Many fans ________ to ask about the exact time.
#105307
A
were calling
B
had called
C
are calling
D
call