The price of the shoes___than before.I can't afford two pairs.A.is more expensive B.is much highe

选择D
价格的高低只能用low或high,不能用cheap或expensive
cheap：形容词 a.
1.便宜的,价廉的
Eggs are very cheap now.
现在蛋很便宜.
2.劣质的,廉价品的
The coat may be expensive but looks cheap.
那件大衣也许很贵,但是看起来很粗劣.
3.低级的,粗鄙的;虚伪的
4.容易得到的,不费力的
Talk is cheap.
说空话是不费力的.
low：形容词 a.
1.低的,矮的;浅的
The office is in a low building.
办公室设在一幢低矮的房子里.
2.(在量、度、价值等方面)少的,小的,低的
The temperature is very low today.
今天气温很低.
3.不足的,快枯竭的[F][(+on)]
I'm low on cash right now.
我眼下现金不足.
4.低声的,低音的
She said it in a very low voice.
她很低声地讲的这话.
5.没有精神的,情绪低落的
I've been feeling low all week.
我整个星期都情绪不高.
6.贬的
He has a very low opinion of that book.
他认为那本书没有价值.
7.粗俗的;卑劣的
He played a low trick.
他玩弄卑鄙的伎俩.
8.地位低的,卑微的
He is a man of low birth.
他出身低微.
9.营养差的;体质弱的
He is very low with typhoid.
他因患伤寒身体很差.
所以说某些商品便宜 而不是某些商品的价钱便宜 要说价钱低