Question

You can buy ____ of these two books; they are ____very helpful if you want to improve your knowledge in the field.

A) both / all

B) one / none

C) one / all

D) either / both

E) both / either

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Answer 1

Answer:

1) One

2) both

Explanation:

Please mark me brainliest

Answer 2

Answer:

The correct option here is (d) both/either.

Explanation:

You can buy either of these two books; they are both very helpful if you want to improve your knowledge in the field.

Both refers to two things or people together. Both is always considered plural in a sentence.

Examples:

Both these boys are brothers.

Hold the book with both hands.

We can use either as a determiner before a noun to talk about two choices or possibilities. The noun that follows either must be a singular countable noun:

Personally, I don’t like either jacket.

Either restaurant will be okay, as they both serve vegetarian food.