The country has already sent up 3 unmanned spacecraft, the most recent at the end of last March.
#91255
A
was launched
B
being launched
C
has been launched
D
having been launched
推荐题目
______, the concert began.
#91632
A
The listeners having taken their seats
B
Having taken their seats
C
Having taken their places
D
Taking their seats
All the cloned animals have so far suffered from some serious disorders, many of dying soon after birth.
#90946
A
that
B
whom
C
which
D
them .
Almost all of his time ______ experiments, he has no time to visit his parents.
#91129
A
devoted to do
B
devoting to doing
C
devoted to doing
D
is devoted to doing
