.There  are over 58,000 rocky objects in__________ space,about 900 of which could fall down onto        earth.

A. the rhe   B.不填  the    C. the  不填    D. a   the 

There are over 58,000 rocky objects in ______ space, about 900 of which could fall down onto ______ earth.

There are over 58, 000 rocky objects in _______ space, about 900 of  which could fall down onto _______ earth.

There are over 58,000 rocky objects in ______ space, about 900 of which could fall down onto ______ earth.

A. the; the???? ????????????? ????????????? B. /; the???? ????????????? ????????????? ????????????? C. the; a????? ????????????? ????????????? D. a; /

There are over 58, 000 rocky objects in _______ space, about 900 of  which could fall down onto _______ earth.

A．the; the           B．不填; the          C．the; 不填         D．a; the

There are over 58,000 rocky objects in ______ space, about 900 of which could fall down onto ______ earth.

A．the; the           B．/; the             C．the; a            D．a; /

.There  are over 58,000 rocky objects in__________ space,about 900 of which could fall down onto        earth.

 There are over 58, 000 rocky objects in _______ space, about 900 of which could fall down onto _______ earth.

A．the; the          B. 不填; the        C．the; 不填        D．a; the

There are over 58,000 rocky objects in _______ space, about 900 of which could fall down onto _______ earth.

A. the; the　　　　　 B. 不填; the　　　 C. the; 不填　　　 D. a; the

There are over 58,000 rocky objects in ______ space, about 900 of which could fall down onto ______ earth.

1. A.
   the; the
2. B.
   /; the
3. C.
   the; a
4. D.
   a; /