单项选择。1．—Whatdoyouneed，Mom?—Ineed
问题详情：单项选择。1．—Whatdoyouneed，Mom?—Ineed______potatoand____onion.A．a；aB．an；anC．an；aD．a；an【回答】D知识点：冠词题型：选择题...
单项选择---Whatdoyouneed?---Iwanttobuy
问题详情：单项选择---Whatdoyouneed?---Iwanttobuy___________.A.aboxofcrayon B.twoboxesofcrayon C.aboxofcrayons D.twoboxofcra...