如图，直线AB与直线CD相交于点O，E在∠AOD的内部，已知∠AOE的度数为90°，∠BOD的度数为40°，则∠COE的度数是 ．
Helen didn't go to Chongqing by plane． I ， she went there by train．
Mark can a at the office on time every day． He is never late．
We will try our best w we are successful or not．
We can't smoke in p It's harmful to others．
Everyone was （surprise） to see her at the party last night．
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