Polar bears live mostly on_____ sea ice, which they use as ____platform for hunting seals.
#10482
A
a;a
B
a;the
C
/;a
D
the;/
推荐题目
It is known to us that without__ passport, travelling abroad is out of ___question.
#9900
A
a; the
B
不填；不填
C
the; a
D
the; 不填
To tell you ______ truth, he is not _____ John I know before.
#10322
A
the; the
B
a; a
C
a ; the
D
/; a
Looking back，we have reasons to believe that ___more prosperous and stronger China will surely make new contributions to _____civilization of mankind．
#10148
A
a；a
B
a；the
C
the；the
D
the；a
A Christmas tree is ______ sign that can only be understood as far as ______ certain cultural understanding is concerned.
#8349
A
the, /
B
a, the
C
a, a
D
the, a
There are over 58,000 rocky objects in ______ space, about 900 of which could fall down onto ______ earth.
#8844
A
the; the
B
/; the
C
the; a
D
a; /