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Àý£ºIt is generally considered unwise to give a child __________ he or she wants.

      A£®however            B£®whatever         C£®whichever       D£®whenever

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21£®Don¡¯t be afraid of asking for help __________ it is needed.

      A£®unless               B£®since              C£®although         D£®when

22£®A cook will be immediately fired if he is found _______ in the kitchen.

      A£®smoke               B£®smoking         C£®to smoke         D£®smoked

23£®Allen had to call a taxi because the box was _________to carry all the way home.

      A£®much too heavy                                   B£®too much heavy

      C£®heavy too much                                   D£®too heavy much