Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.

No other quality is more important for a scientist to acquire as to observe carefully.

A. Not until

B. Just before        

C. Only        

D. No sooner

A. Hard had the teacher returned home from work when he started to write the lesson plan.

B. Hardly had the teacher return home from work when he start to write the lesson plan.

C. Hardly had the teacher return home from work when he started to write the lesson plan.

D. Hardly had the teacher returned home from work when he started to write the lesson plan.

A. self-supporting          

B. supporting themselves

C. self-supported           

D. they supported themselves

A. Try as hard as I might, I could open the window.

B. Try as hard as I might, I can not open the window.

C. Try as hard as I might, I could not open the window.

D. As hard as I might, I could not open the window.

A. a few     

B. a little     

C. very little 

D. not much

A. Everything in the house is said to has been stolen ( by the thief)

B. Everything in the house is said to have been stolen ( by the thief)

C. Everything in the house are said to have been stolen ( by the thief)

D. Everything in the house are say to have been stolen