为你解答。(B)1、I (left) my homework at home.我把作业忘在了家里了。解释:forget后面是不能跟地点状语的,只能说忘记某事。leave可以跟地点。(B)2、I usually go shopping in that market, because their prices are (low).我通常都在那个市场购物,因为价格便宜。解释:如果形容具体的物品,可以用cheap;但是形容price(价格)的话,只能用high或low(高或低)。(A)3、She draws better than (us all). B all us 她比我们画得都要好。解释:我们所有人,可以说us all,或all of us,B项的all us不完整。(C)4、It is very hard to (find) a good place in our city to study car design .在我们城里很难找到一个好地方学习汽车设计。解释:这里不是强调找的过程,而是找的结果。B项的词组应该是search for。