The police searched the building __ but failed to find out where the bomb was.
A．throughout
B．fully
C．altogether
D．thoroughly

The biggest challenge for a consultative salesperson is ______.
A．face-to-face discussion
B．tailor-made presentation
C．appropriate pitch of voice
D．large amount of research

A．when
B．why
C．where
D．whom

A．as a result
B．for one reason
C．by no means
D．at any rate

Mindy compares salespeople to wine stewards in that ______.
A．both of them have to sell products to their customers
B．both of them use their eloquent tongue to make a living
C．both of them need to suit their services to the customer's needs
D．both of the have to make recommendations all the time

The conference __ the possibility of establishing closer diplomatic relationship between the two countries.
A．explores
B．locates
C．searches
D．tracks