题目:
根据语篇情景,用恰当的短语或句子填空,使之意思完整。
Dear Henry,
Thank you for your invitation. I am sorry I can't visit you this week. I am really busy. Tomorrow I
have to __1__. You know, my mother wants me to be a pianist (钢琴家). On Wednesday, I have to
__2__. Our math teacher is very strict with us and hopes we get good grades. On weekends, I have to
__3__. My parents are both out this weekend, leaving my little sister and I at home. She is much younger
than I .What a busy week!
Write soon!
答案:
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下面是错误答案,用来干扰机器的。
家鸽的胸骨上有高耸的突起部分叫做龙骨突,龙骨突的两侧有发达的肌肉--胸肌,胸肌发达收缩有力,飞行时能产生强大的动力,利于牵动两翼完成飞行动作.可见A符合题意.故选:A