I call him ________, even there is not much to say[ ]

Bob called to tell his mother that he couldn’t enter the house, for he ________ his key at school.

It is reported that some mainland visitors to Hong Kong Disneyland didn’t ________ the park rules and behaved improperly. [ ]

________ that he found it difficult to stop at the busy crossing.

The little boy was allowed to go swimming _______ hekept near the other boys.