Carl Linnaeus made great contributions to ________ plant species.
#93953
A
group
B
have grouped
C
grouping
D
been grouping
推荐题目
I guess Tom won’t keep on asking me the time from now on, as he has had ______.
#93576
A
his watch repaired
B
his watch repairing
C
repaired his watch
D
repair his watch
It is the first time that I _______ this kind of tasty moon cake.
#92789
A
enjoy
B
have enjoyed
C
had enjoyed
D
am enjoying
Mr Wang______an article on how to improve spoken English last month, but I don’t know whether he has finished it.
#94942
A
has written
B
wrote
C
had written
D
was writing
Mary wrote an article on ________ the team had failed to win the game.
#95102
A
why
B
what
C
who
D
That