English is ___ useful language.
#9949
A
a
B
an
C
the
D
/
推荐题目
Robert is interested in ________ astronomy and he wishes he could make a trip into ________ space one day.
#7696
A
the; the
B
an; the
C
an; /
D
/; /
Although it had been _____ struggle for him to finish ______ experiment, he enjoyed the result with_______ satisfaction.
#8904
A
the; an; /
B
a; the ; /
C
a; an; a
D
/; the; a
Animals are obviously _____ lower form of life than ______ man.
#8381
A
a; /
B
the; the
C
a; the
D
/; /
That Xiao Shenyang was elected _____model worker of May Day caused ____enthusiastic discussion in China．
#9890
A
the, the
B
a, an
C
the, a
D
a, the