A pair of glasses ___(be) fifty yuan.A packet of sweets__(be) sixteen yuan.
问题描述：
A pair of glasses ___(be) fifty yuan.A packet of sweets__(be) sixteen yuan.
答
is 一副眼镜，注意，是一副
is 一包糖，算“包”的数量
答
A mustn't B wouldn't C can't D needn't 1 cotton 2
答
is ； is