介词填空 who is____duty today?what class are you______?
题目
介词填空 who is____duty today?what class are you______?
his father is a teacher ______NO.4middle school
welcome ______china,mr green
答案
who is 【on】duty today?
what class are you 【in】?
his father is a teacher【from】NO.4 middle school
welcome【to】china,mr green
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