Choose the option among A, B, C, D which needs correcting to make a complete sentence

Genetic engineering is helping researchers unravel the mysteries of previously incurable diseases so that they can get to its root causes and fĩnd cures

A. If he isn’t short-sighted, he won’t have to wear the glasses

B. If he hadn’t been short-sighted, he wouldn’t have had to wear the glasses

C. If he weren’t short-sighted, he wouldn’t have to wear the glasses

D. Should he not be short-sighted, he won’t have to wear the glasses

A. travel

B. joumey

C. trip

D. voyage

A. normal

B. abnormal

C. abnormality

D. abnormally

A. are the forms of glasses and contact lenses

B. in the form of glasses and contact lenses

C. glasses and contact lenses which form

D. glasses and contact lenses may be formed

A.shouldpay

B.willbepaid

C.willpay

D.should be paid

A. No sooner had I left the house than he came

B. I had hardly left the house when he came

C. When he came I had just left the house

D. I was just about to leave the house when he came

A. light

B. easy

C. old

D. small