It is reported that the scientists in our country are_______all possible way to control H7N9 flu. 
#12027
A
operating
B
solving
C
exploding
D
exploring
推荐题目
I don’t doubt ______ for the journey by doing jobs on the ship.
#13429
A
that he can pay
B
whether he can pay
C
that can he pay
D
whether can he pay
_________ teachers are present today, and __________ them is 300.
#14474
A
A great many; a number of
B
A number of; the number of
C
A dozen of; a great many
D
The number of; a number of
He is an        tourist and he has        interesting experiences. 
#14160
A
experienced; a great many of
B
experienced; a great deal of
C
experiential; a great deal of
D
experienced; a great many