It is rather ______ that we still do not know how many species there are in the world today.
#59576
A
misleading
B
embarrassing
C
boring
D
demanding
推荐题目
His proposal is very _____. We do not need any explanation.
#20719
A
abstract
B
faithful
C
loyal
D
concrete
My brother likes eating very much but he isn't very _____ about the food he eats.
#18286
A
curious
B
content
C
harmful
D
ordinary
_______ the children grew old, they became more and more _______ in science.
#19126
A
As; interested
B
With; interesting
C
While; interest
D
With; interested
Would it be ___________ for you to pick me up at four o'clock and take me to the airport?
#18009
A
free
B
vacant
C
handy
D
convenient