I ______ music that I can dance to ______ the one that I can sing along with.[ ]
He hasn’t heard from his friend ______ last month. [ ]
_______ is the Yellow River,5,300 kilometers or 6,300 kilometers?—5,300 kilometers, I think .[ ]
Could you tell me what he said just now? — Sorry, I_____ what was happening outside.
Martin was once ________ “problem student”, but now he’s one of ________ top students.