what did he major---------- at university A.in B.at C.about

What did you ____ at the university?A.major B.majored in C.m What he did was opposite ( ) what he said. A at B to C in D What did you chat __ him about? A.of B.to C.at D.in what did he ____ about traveling at the meeting?A.tell B spe 选择题What test did Mary study_____? A.about B.at C.of D.for A：What did you do last weekend?B：I worked at the university What did you do ( )the end?A.at B.on C.during D.in _____is good at Maths .What about _____?A.She;him B.She;he C 1,kate is good at history .what about ( A,he B,him C,we D,sh when did he ____?A.arrive B.arrive in C.arrive at D.get What are you looking____?A :at B :at C:in 英语选择,He knows lot _________ Beijing.A.of B.at C.in D.about