1.Three ducklings are yellow and lovely.（对 yellow and lovely提问）2.There are four eggs in the nest.（对four提问）3.Mother Duck is making a nest.（一般疑问句）4.It‘s a beautiful swan.（改写成感叹句）5.There are three duck

These three ugly ducklings are on the water.改为单数句 The three ducklings often __play together__ in the pond.(对划线部分提问) 1.Three ducklings are yellow and lovely.（对 yellow and lovely提问）2.There are four eggs in the nest.（对four提问）3.Mother Duck is making a nest.（一般疑问句）4.It‘s a beautiful swan.（改写成感叹句）5.There are three duck ducklings can swim 改成一般疑问句 The ducklings can swim in the pond.改为一般疑问句 两道SAT2数学题1. A hotel has five single rooms available, for which six men and three women apply.What is the probability that the rooms will be rented to three men and two women?2.Of all the articles in a box, 80% are satisfactory, while 20% ar AR RETURN AR,CP, AR是什么意思 three three Three Three three three three 2道英语选择题 初三的1.I first met Lisa three years ago when we _____ at a radio station together.A.have worked B.had been working C.were working D.had worked2.下面哪句话是“错”的?A.Could you tell me what is wrong with Peter's ar 求做线性代数题目1.设向量组A1,A2,……,Ar线性无关,作一下线性组合：B1=A1+K1*Ar ,B2=A2+K2*Ar ,……,Br-1=Ar-1+Kr-1*Ar证明：B1,B2,……,Br也线性无关