The islands developed on their own for 80 million years and ________ have many rare animals found nowhere else. 
#93104
A
soon
B
so
C
early
D
yet
推荐题目
_____ many times, but he still doesn’t know how to operate the machine properly.
#92970
A
Although I have shown him
B
I have shown him
C
Having been shown
D
Having shown
I really don’t know _____ I put my wallet after I paid the bill.
#93502
A
where was it
B
it was where that
C
where it was that
D
where was it that.
Before he went abroad, he spent as much time as he ____ English. 
#94791
A
could learning
B
learned
C
to learn
D
could learn