Happy Birthday! Here is a gift for you.____________________.
A. What's in it?
B. You are welcome.
C. Oh,I love it. Thank you very much
D. How much is it?
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I am terribly sorry. Please forgive me.
A. Forget it. That's OK
B. You are welcome
C. My pleasure
D. The same to you
It is very _____________(贴心的) of you to help me.
A. grateful
B. forgetful
C. welcome
D. thoughtful
It is all my _________(错误). I apologize for all that I've done.
A. fault
B. honor
C. excuse
D. gratitude
炉渣脱S的条件有高温、高碱度和()。
A. 高粘度
B. 低粘度
C. 无所谓