---Have you received Jack’s plan? ---Yes, but I don’t think his plan is _____．

On catching sight of his mother, the little boy _________ his grandmother and threw himself into his mother’s arms.

Our son doesn’t know what to _____ at the university; he can’t make up his mind about his future.

She ________ into the thick forest alone on such a dark night.

Please ___ your new watch, or you’ll get it lost.