There are some knives in these___.A.box B.boxes C.boxs

There are some knives in these___.A.box B.boxes C.boxs There are some___in these__.a.knifes...pencil-boxes b.knives There are some knives in the box.【改为单数】 there are some knives in the box 改为特殊疑问句划线部分为some knives there are （ ） on the floor A.some box B.some boxes Are these___the twins'?A:key B:box c:keys D:boxs there are some knives in the pencil-box.变否定句、一般疑问句并作肯定和否定回答, Near the bag there are two boxes.the big _____ is a box of c ( )1.There are two__on the table.A .box of egg B.boxes of eg 找出每句中的错误:There aren't some biscuits in that box.A B C 1.There are some in the box.. There are some apples in the box