Carl Linnaeus made great contributions to ________ plant species.
#93953
A
group
B
have grouped
C
grouping
D
been grouping
推荐题目
—________you like that latest type of car so much，why not buy it?—Well，I can’t afford so expensive a car. It is worth 200,000 yuan.
#93273
A
As if
B
Even if
C
Now that
D
In case
The bank is reported in the local newspaper ______ in broad daylight yesterday
#92938
A
to be robbed
B
to have been robbed
C
robbed
D
having been robbed
_______ the smoke come out of the building, my first thought was to call the fire department as soon as possible.
#92680
A
Having seen
B
When seeing
C
When I saw
D
Seeing
，please start the work tomorrow.
#91931
A
If you are convenient
B
If it is convenient for you
C
If it is convenient of you
D
If convenience
It’s the first time that he has been to Australia ,______?
#94116
A
isn’t he
B
has’t he
C
isn’t it
D
hasn’t it