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152.              Don’t spoil your appetite by eating sweets just before dinner.

151.              They visited the museum, where a number of stone-age tools were displayed.

150.              Do all the squirrels store food for the winter?

149.              English is taught as a major subject all over the world.

148.              He warned them not to go skating on such thin ice.

147.              The WTO cannot live up to its name if it does not include a country that is home to one fifth of mankind.

146.              I take this opportunity to thank you.

145.              His decision to retire surprising all of us.

144.              Don’t argue with me, my decision is final.

143.              Unfortunately , man realized too late that the world he lives in had been polluted.