Question

use modal auxiliary verbs

1.there was a time when I ------- remember everything


2. these birds -------- be kept in a cage

3.she ------ see a doctor. she looks sick

4 I ------- hear some snoring.

5 . I ------be back in a few minutes

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Answer 1

1) Could

2) Must

3) Should

4) Could

5) Will

Answer 2

1. could

2. shall

3. Must

4. can

5. will