We’d better discuss everything _________ before we work out the plan．

A．in detail

B．in general

C．on purpose

D．on time

Recently a survey _________ prices of the same goods in two different supermarkets has caused heated debate among citizens．

A．compared

B．comparing

C．compares

D．being compared

Teachers have to constantly update their knowledge in order to maintain their professional _________．

A．consequence

B．independence

C．competence

D．intelligence

It was never clear _________ the man hadn’t reported the accident sooner．

A．that

B．how

C．when

D．why

In that school, English is compulsory(必修)for all students, but French and Russian are _________．

A．special

B．regional

C．optional

D．original

Between the two parts of the concert is an interval, _________ the audience can buy ice-cream．

A．when

B．where

C．that

D．which

The fact that so many people still smoke in public places _________ that we may need a nationwide campaign to raise awareness of the risk of smoking．

A．suggest

B．suggests

C．suggested

D．suggesting

Would it be _________ for you to pick me up at four o’clock and take me to the airport?

A．confident

B．constant

C．delighted

D．convenient

You’d better _________ your coins, and see how long you can last．

A．add up to

B．add up

C．add to

D．add

_________, what she had devoted herself to resulted in nothing but failure．

A．To her much disappointment

B．To her great disappointment

C．Great to her disappointment

D．To her disappointment much