The student couldn’t ______ what the teacher was trying to explain.
A．recognizeB．graspC．studyD．a(chǎn)chieve
B
考查詞義。recognize 認(rèn)出，承認(rèn)；grasp 了解，理解，掌握；study 學(xué)習(xí)；achieve獲得，實(shí)現(xiàn)。句意：學(xué)生們不能理解老師正在解釋的內(nèi)容。所以選B.
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