Nowadays the roles of husband and wife are not as ______ defined as before, especially when both parents work and earn money for the family.
| A．clear | B．clearer | C．clearly | D．more clearly |
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 |
The boy the teachers considered _____failed in the exam , _____surprised them very much .
| A．to be the best ;which | B．as the best ,that |
| C．to have been studying well, it | D．being the best ;which |