Question

We __________ play under that tree during childhood.

A.

used to
B.

need to
C.

should
D.

will

Answer 1

A. used to

Step-by-step explanation:

The sentence states "during childhood", confirming that the speaker is referring to a memory from the past. Therefore we need an answer that represents the past.

Leaving us with A. Used To

Answer 2

used to

Step-by-step explanation:

Im under the assumption that during childhood is in the past tense, so used to makes more sense