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

A．Having checked

B．Check

C．If you check

D．To check

Well paid ________ he was, he often ended up in financial troubles ________．

A．as…though

B．although…however

C．while…yet

D．though…still

The old grandfather, much to the surprise of the doctors, won’t want his grander daughter ________ this week．

A．to operate on

B．being operated on

C．to be operated on

D．operating on

The factory director made a promise ________ I solve the problem within half a day he would give me a large sum of reward．

A．when

B．if

C．if that

D．that if

Johnson suggested the problem worth paying attention ________ at the meeting．

A．to be discussed

B．to been discussed

C．being discussed

D．should be discussed

Carl Linnaeus, the famous botanical scientist, was a man always in blue．His depression was ________ his childhood illness in his biography．

A．centered on

B．concentrated on

C．accustomed to

D．referred to

－How unhappy your roommate looks!

－Yes, but he’s not willing to tell me what it is ________ is troubling him．

A．what

B．which

C．as

D．that

Sarah is so sweet but ________ girl to speak out in public．

A．the too shy

B．too shy a

C．too shy the

D．too a shy

Mrs．Black took the police back to ________ place ________ she witnessed the robbery．

A．the same; as

B．the same; where

C．same; that

D．same; when

Things came ________ after that．And now he has ________ student in Hong Kong University．

A．easy; become

B．easy; turned

C．easily; become

D．easily; turned