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
   Finally they managed to find a path _______.
#97344
A
to follow
B
following
C
to go
D
going
______ more visitors, the Beijing Garden Expo Park gives roses to visiting couples.
#90597
A
Attracted
B
Attracting
C
To attract
D
Having attracted
The girl ________at the party yesterday is missing today.
#89770
A
referring to
B
refer to
C
referred to
D
to refer to
 I really don’t know ____ .
#97498
A
to swim
B
how to swim
C
to swim how
D
how swim