More bison were killed．The bison population is thought ______ from 60 million to just a few hundred between 1850 and 1910.
#96722
A
to have fallen
B
having fallen
C
to fall
D
falling
推荐题目
Friends are like leaves, ________ everywhere, but true friends are like diamonds, precious and rare.
#92483
A
found
B
finding
C
to find
D
being found
________ over everything whenever we want to make a decision, many people believe, and we will have less chance of making mistakes.
#95479
A
To think
B
Think
C
Thinking
D
Thought
He admitted ___away the purse____to him．
#95406
A
to have taken: not belonged
B
taking; not belonged
C
taking; not belonging
D
to have taken: not belonging
Mr Smith, _____ of the _____ speech, started to read a novel.
#93757
A
tired; boring
B
tiring; bored
C
tired; bored
D
tiring; boring
_______ a precious diamond necklace for his wife, Martin could hardly afford a tie for himself．
#92328
A
Having bought
B
Buying
C
Being bought
D
To buy