I________all the cooking for my family，but recently I've  been too busy to do it.  
A．will doB．doC．a(chǎn)m doingD．had done
B
B　[句意：我為全家人做飯，但最近太忙了，以至于沒能做。由句意知：為家人做飯是經(jīng)常性、習(xí)慣性的動作，應(yīng)用一般現(xiàn)在時。]
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