来自郭金柱的问题
Theremusttobesomemonkeys_____(escape)fromthezoo.sorry,没to
Theremusttobesomemonkeys_____(escape)fromthezoo.
sorry,没to


Theremusttobesomemonkeys_____(escape)fromthezoo.sorry,没to
Theremusttobesomemonkeys_____(escape)fromthezoo.
sorry,没to
must后面多打了个to吧?
横线上填:escaping
mustbedoing对于现在的肯定推测
PS.九年级U5的练习吧...P38页-3a中有同样的句子、