The problem seems to be ..................

A. long

B. shortest

C. longest

D. longer

A. as difficult as it was last month.

B. so difficult as it was last month

C. more difficult as it was last month.

D. Both A & B are correct

A. the prettiest

B. the most pretty

C. prettier

D. the prettier

A. hot and hot

B. the more hot

C. more and more hot

D. hotter and hotter

A. The better is your English

B. The better will be your English

C. The better becomes your English

D. The better your English will be

A. more fast

B. more fast than

C. more fast

D. faster than