Little Tom tiptoed quietly to the bird, but ______ into the forest when he was about to catch it.

I ____ my close friend three times today but her line was always busy.

When she came several days later, she found that all things still _______ where she had _______ them.

It was such a difficult problem_______ few students in our class worked out

They are subject to your ,but the final list is to be sent to the manager for his .