问题
This is Tom speaking. Is Mr. Brown in, please —_________ .
A:not
B:don’t
C:no
D:/;
B:don’t
C:no
D:/;
正确答案是：
同类题型
Scientists study ____ human brains work to make computers.
Electricity ___ our messengers ,for it carries our messages all over the country.
eople ________ not have plans yet for New Year’sEve, but others know exactly what they will be doing
Oh my god! You__ wear slippers to attend theconference．—I’m sorry I forgot there is a conference．