V – Read the pasage and decide which answer best fits each space :
The Gobidesert is a cold desert , and it is not uncommon to see frost and occasionally snow on its ( 21 ) . Besides being quite far north , it is also roughly 900 meters (2,953f t ) above sea level ,which further ( 22 ) to its low temperatures . An average of approximately 194 millimeters (7.6 in) of ( 23 ) per year in the Gobi. Additional moisture reaches parts of the Gobiin winter as snow is ( 24 ) by the wind from the Siberian Steppes . These winds ( 25 ) the Gobi to reach extremes of temperature like no other , ranging from – 400 C in Winter to + 500 C in Summer .
(21)
A.summits
B.peaks
C.mounts
D.dunes