year after year , tigers are becoming fewer and fewer .
#96118
A
Having been killed
B
Killing
C
Killed
D
Having killed
推荐题目
He looked around and caught a man _____ his hand into the pocket of a passenger.
#98931
A
put
B
to be put
C
to put
D
putting
“ ______ as often as you can,” our English teacher often tells us, “ you will make rapid progress.”
#97620
A
Practice
B
To practice
C
Having practised
D
Practising
The human body consists of organs, each ____a definite job to do.
#94038
A
have
B
to have
C
has
D
having
The new government decided to encourage industries ______ technology, which was ______ biology.
#93221
A
basing on; linked to
B
being based on; linking with
C
based on; linked with
D
to base on; linked
In this victory speech ________ before a huge crowd of his supporters, Obama declared that “Change has come to America”.
#89623
A
delivered
B
to be delivered
C
having delivered
D
delivering