He'll do what he can to study hard.这句话是什么从句,what可不可以改为that

He'll do what he can to study hard.这句话是什么从句,what可不可以改为that 为什么He'll do what he can to study hard.这句话中What 不可以改成that What can he do的中文 He ll tell you what to do 是什么从句? He tries to do what he can _________English well(study) what( ) he do?he can swim.括号里填什么 What can he do?用do还是does? 是can you think what he does 还是can you think what he do What can he .He can do Chinese he can do no matter what he wants.同义句now he can do—— ——wants what he should do -What _____ he ______ ? -He can sing. A.can,does B.does,do C.does,can D.can,do Ask him to think about to help others.A.Ask him to think about to help others.A.what he can do.B.what can he do.C.he can do what.D.can he do what what can he do的复数形式?3Q can you see （what does he do?） what can he do翻译 是”他能做什么? what do he can?英语 连词成句