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【判断题】
二维条码是一种在水平方向和垂直方向均带有信息的条码。A.
正确
B.
错误
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【单选题】My son, Johnny, opened a new restaurant, and on the opening day I helped out in the kitchen. By mid-morning, I noticed that the cakes we had ordered hadn't come. Johnny and I decided not to tell it to...
A.
the baker next door came to help with the opening
B.
the new restaurant did not prepare all its foods
C.
the son and the daughter served at the tables
D.
the customers enjoyed the cakes very much
【单选题】I was very______ for him because he helped me out of trouble.
A.
grateful
B.
calm
C.
loose
D.
worried
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