帮忙解答一道英语介词单选题!--Can I help you?--I'd like to buy a present for my father's birthday,____at a proper price,but of great use.A.thatB.oneC.anyoneD.everything就解释下A怎么不对呢?

帮忙解答一道英语介词单选题!--Can I help you?--I'd like to buy a present for my father's birthday,____at a proper price,but of great use.A.thatB.oneC.anyoneD.everything就解释下A怎么不对呢? 英语单选题求帮忙! 求解答…英语单选题… 请帮忙做一下英语单选题 帮忙看看这几道高二英语单选题. 一道单选题 一道单选题 初三化学一道单选题 一道单选题, 请帮忙解答一道英语单选题.1.Why didn't you come to the party yesterday I__,but an unexpected visitors came to see me A.did B.would C.had D.was 请帮忙做一道英语单选题,并加以解释,if you__ drink so much,of course you will feel sick.A,ought to B,can C,may D,must 新概念英语里面的一道题.请帮忙.Can you lift this box _______ the table?是用介词on还是off?我填的是on,可是答案里面是off不解,请帮忙解答,谢谢! Thomas Wayne：Why do we fall?So we can learn to pick ourselves up想把它改成一道单选题,帮忙挖个空,设几个选项,Thank you! 英语单选题, 一些英语单选题, 英语单选题, 单选题,英语 单选题英语,