(2013·泰安一中月考)—John has put forward ________ most challenging question for us to answer.—Yes，it really is.I have never heard ________ harder one.
#7889
A
the；/
B
/；the
C
the；the
D
a；a
推荐题目
He spent too much time talking on _______ phone while we were all busy at _______ work.
#8282
A
the; /
B
a; /
C
/; /
D
the; the
This area experienced ______ heaviest rainfall in ______ month of May.
#9078
A
a; a
B
a; the
C
the; the
D
the; a
Although motor car has been with us for almost a century, I have never been able to drive __________American one.
#10015
A
the ; an
B
was remained
C
a; the
D
the ; the
____ lies in North America.
#10367
A
The United State
B
The United States
C
United States
D
A United State
Although everything seems to have been taken into consideration, ________ accident can happen when the astronauts walk in ________ space.
#9419
A
/; the
B
an; the
C
the; the
D
an; /