Don’t respond to any emails _______ personal information, no matter how official they look.
| A．searching | B．asking | C．requesting | D．questioning |
He must have finished the work yesterday, ____ he ?
| A．mustn't | B．haven't | C．didn't | D．hasn't |
Is there a shop aroun ____ we can buy some toilet articles?
| A．that | B．which | C．where | D．what |
He must have lived here for 10 years, ____ he?
| A．mustn't | B．haven't | C．didn't | D．hasn't |
___ smoking here will be fined.
| A．Who | B．Whoever | C．Anyone | D．Who ever |
"Where is it?" "Where is ____? I don't know what do you mean?"
| A．what | B． that | C．where | D．so |