It`s new pen {复数}

It`s new pen {复数} It’s his pen.怎么变复数 What's this?It's a pen.(改为复数句) It's a new toy bus.[复数] It's a calculator改为复数形式It's a pen.It's my key.That's a clock.It's her book都改成复数形式 It,s a new toy bus.改为复数形式. It's a new bus.改为复数句 it's a new book 改为否定的复数形式 —Where is new pen?—It‘s in the pencil case.改错. It is my pen.(改为复数形式) Is it ___your new pen pal?填空 英语 改复数句This is a pen.Is this your backpack?It's a black bag 改成复数形式．1．Is that a bus?2.What's thia?It's a box.3.Where is the pen?It's in the desk. it's的复数 it's(复数) --Whose new pen is this?--It is Bob's.这句话是否正确,如果错误就改正 It's a new toy bus.(改为复数句)怎么改? It's a new box.(改为复数形式) 一一一 ——— new ———