ANTARCTIC ____________ WE KNOW VERY LITTLE IS COVERED WITH THICK I...

THE THIRD MOCK EXAM FOR UNIVERSITY ENTRANCE SCHOOL YEAR 2010 2011 PPSX

Nội dung
Đáp án tham khảo

23. Antarctic ____________ we know very little is covered with thick ice all the year round.

A. on which B. where C. that D. about which