Question

Scientists say life started in the ocean. However, humans aren't natural swimmers. We (1) swim as babies, but we forget and then we (2)... learn to swim again We...(6)... learn to swim when we are young. It is easier to learn then. Our parents (7) help. They (8) give us the opportunity to learn to swim. We .(3)\ forget that our world is mainly water. So we (4) all learn to swim. We 5) try to stay away from water, but it is very difficult. The time always comes when we need to cross water

Answer 1

(1) : as

(2) : must

(6) : should

(7) : can

(3): must not

(4) : should

(5) : ought to