Being a good listener is a kind a quality and that's ________ it takes to keep friendship.
| A．which | B．what | C．how | D．where |
Look at the new computers, of ______ none are produced abroad.
| A．them | B．whom | C．which | D．these |
Theory is based on practice and ________ serves practice.
| A．in turn | B．by and by |
| C．by chance | D．in this case |
— How many of them do you want to act in the play?
—_______ , and still a large number needed!
| A．All | B．Both | C．Neither | D．None |
Since no other way to escape from the flood, ____ only safe thing is to take ____chance.
| A．an ; 不填 | B．the ; a | C．an; a | D．不填；the |
—Would you mind my using your bicycle for a while?
— _________, but do return before 11.
| A．No problem | B．Not at all | C．A pleasure | D．Sorry but I do |