we must stop doing these things.划线部分提问,划线部分,these things

we must stop doing these things.划线部分提问,划线部分,these things These strange things looked like sandwiches.(就划线部分提问) These things are too heavy.对划线部分提问z These things are too heavy.对划线部分提问 l learned English by doing things.(就划线部分提问)划线部分:by doing thi 就划线部分提问We use trolleys for carrying heavy things.(划线部分是carry These are photo.划线部分提问.划线部分是:photo These are__kids__ .(划线部分提问） These are basketballs 对划线部分提问 basketballs划线 Uncle wang likes making things 对划线部分提问,划线部分为makeing things,有 We must stop polluting the water.(划线部分提问)__must we stop____? we burn things to make energy.就划线部分提问 _ (to make energy) ___