The new buyer identified a dozen new sources for the material, ________ proved to be reliable.
A.most of them B.most of which C.most whom D.most of those
________ I say Clancy is a smart boy, he still needs to work hard to achieve his goal.
A.If B.When C.As D.While
How long do you think ________the computer company brings out a new product?
A.it will be before B.will it be until
C.will it be when D.it will be that
How could they reach an agreement？Some said one thing，but others ________.
A. other B. another
C. the other D. others
It is important to pay your electricity bill on time, as late payments may affect your ________.
A.condition B.income
C.credit D.status
________ to Anne’s birthday party, Mr Brown is now searching shop after shop for a nice present for her.
A.Having invited B.Having been invited
C.Have been invited D.Being invited
