Rare species in the world, ______ by hundreds every year, must be jointly preserved by all countries, or humans will encounter ecological disaster in the near future.
#94233
A
disappeared
B
disappearing
C
disappear
D
having disappeared
推荐题目
The boy______ between my sister and my brother is my cousin, Jack.
#95823
A
sitting
B
sat
C
sits
D
to sit
The problems at the meeting tomorrow are really hard to solve.
#94626
A
discussed
B
to discuss
C
to be discussed
D
discussing
He always dreams of ________ a chance for him to bring into full play his potential.
#89127
A
there being
B
there to be
C
there is
D
being
_______ basic first-aid techniques will help you respond quickly to emergencies.
#90591
A
Known
B
Having known
C
Knowing
D
Being known
He is always serious and doesn’t like _____.
#95287
A
play jokes
B
being played jokes on
C
being played jokes
D
to play joke on others