Question

fill in the blanks. (i) one of the boxes ______ open. (a) are, (ii) is, (c) was, (d) were​

Answer 1

Answer:

was

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Answer 2

Answer:

One of the boxes was opened.

One of the boxes is opened.

Explanation:

The noun phrase 'one of the boxes' refers to a single box; hence, all the verbs that follow are singular.

The word is and was are used for a singular noun. The former is for the present and the latter is for the past.

For example:

1. One of the boys is sick.
2. One of the boys was sick.
3. One of the apples is rotten.
4. One of the apples was rotten.

Conclusion:

One of the boxes was/is opened.