Explanation-1

Margaret has aced the test by studying diligently and exercise regularly.

A) No change

B) exercising

C) will be exercising

D) had been exercised

Explanation-2

As we have accepted the job offer in London, we will relocate to London next month.

A) No change

B) be relocated to London

C) be relocate to London

D) relocated in London

Explanation-3

Children are playing in the play area by jumps and spins, which is very dangerous.

A) No change

B) jumping and spins

C) to jump and spinning

D) jumping and spinning

Explanation-4

Tomorrow I need to replace the contents and resealing the package before delivering it.

A) No change

B) reseal

C) have resealed

D) reseals

Explanation-5

He slept late at night, and I was afraid he will fall asleep in school tomorrow.

A) No change

B) he was asleep

C) he would fall asleep

D) he has fall asleep