Mistakes don't just happen; they occur for a reason．Find out the reason, and then making the mistake becomes ________．

A．precious

B．innocent

C．essential

D．worthwhile

________ your suggestions are worth considering, the committee finds it unwise to lay too much emphasis on them．

A．As

B．Since

C．If

D．While

The boy, all teachers considered ________ was caught ________ in the exam, which was absolutely astonishing．

A．to be the best; cheating

B．as the best student; to cheat

C．being the best;cheating

D．as a good student; to cheat

The soldiers soon reached ________ was once an old temple ________ the villagers used as a

school．

A．what ; where

B．what ; which

C．where ; which

D．what ; where

Copied by hand in such a rush, ________．How can it be satisfactory?

A．they found many mistakes in the script

B．Sam made lots of mistakes in the script

C．there are many mistakes in the script

D．the report is full of mistakes

The door and the windows were all closed and there was no ________ of forced entry．

A．signal

B．symbol

C．sign

D．sight

I arrived in the middle of the night for a pick up at a building that was dark ________ a single light in a ground floor window．

A．besides

B．but for

C．instead of

D．except for

He advised me to give the prize to ________ I think is equal to ________ the plan．

A．who; carry out

B．whoever; carrying out

C．whomever; carry out

D．whomever; carrying out．

The sound of the sudden gunshot on the busiest street ________ in all directions．

A．send us running

B．send us to run

C．sent us running

D．sent us to run

The people, ________ had been damaged by the flood, were given help by the Red Cross．

A．all of whose homes

B．all whose homes

C．all their homes

D．all of their homes