Tough as the task was, we ________ finish it two days ahead of time and therefore we were highly praised for it．

A．would

B．had to

C．were able to

D．must

－Good evening, Mr．Green．I’m sorry to bother you．But it’s the eighth of May today．

－Oh, Mrs．Baxter, ________ rent!I’m sorry it’s late．I’ll write you ________ check right now．

A．the; the

B．a; a

C．a; the

D．the; a

－Better get down to your work, Jack．

－________．

A．It’s my pleasure

B．Not to mention it

C．Mind your own business

D．You’re welcome

－Will ＄1000 ________ the cost of the trip?

－I’m afraid not．Perhaps I need another ＄400．

A．pay

B．charge

C．cover

D．afford

The thief glanced about now and then ________ he knew he was being followed．

A．even if

B．as though

C．in case

D．so that

His letter was indeed confusing-time and time again I read it, still I couldn’t make ________ of it．

A．explanation

B．meaning

C．guess

D．sense

It’s always difficult being in a foreign country, ________ if you don’t know the culture of the country．

A．extremely

B．naturally

C．basically

D．especially

Where unemployment and crime are high, it can be assumed that ________ is due to the former．

A．the second

B．the later

C．the last one

D．the latter

－How about joining us in the game?

－I’m sorry．I have an urgent matter to ________．

A．relate to

B．handle to

C．attend to

D．refer to

The government will force companies to ________ any possible measure to reduce air pollution．

A．adjust

B．adopt

C．adapt

D．accept