Question

Fill in the blank with the most suitable option:
Before his illness he ______________ anything but now he ___________ very careful with his diet.

• A. Could eat / can be
• B. Must have eaten / had to be
• C. Could eat / has to be
• D. Couldn't eat / has to be

Answer 1

The correct option is C Could eat / has to be

The correct answer is Option C.

COULD EAT means the ability to eat in the past before his illness.

HAS TO BE expresses a requirement in the present i.e. the requirement to be careful with his diet.

Thus Option C is the correct answer.

The remaining options are grammatically incorrect.