The fire was finally ________ after the building had ________ for two hours．

A．put off; caught fire

B．put away; been on fire

C．put out; been on fire

D．put out; caught fire

London is a most beautiful city in Britain，________ the River Thames．

A．located in

B．lied on

C．situated on

D．stood in

________ with a difficult situation ，Arnold decided to ask his boss for advice．

A．To face

B．Having faced

C．Faced

D．Facing

Please remain ________ until the plane has come to a complete stop．

A．to seat

B．to be seated

C．seating

D．seated

In the dark forests ________, some large enough to hold several English towns．

A．stand many lakes

B．lie many lakes

C．many lakes lie

D．many lakes stand

I must have been a great ________ to my parents in those hard days, for I never failed to live up to their expectations．

A．achievement

B．comfort

C．disappointment

D．support

The ________ is just around the corner, and you won't miss it．

A．shoe's shop

B．shoe shop

C．shoes shop

D．shoes' shop

Great changes have taken place in our school．It is no longer ________ it was 20 years ago, ________ it was so poorly equipped．

A．what; when

B．that; which

C．what; which

D．which; that

________ your composition carefully, some spelling mistakes can be avoided．

A．Having checked

B．Check

C．If you check

D．To check

I can't tell you the exact time when I'll get there, maybe at 8 or 9 or later．________, I'll be there as early as I can．

A．Thus

B．However

C．Anyhow

D．There