The child tiptoed quietly to the bird, _____ into the forest when he was about to catch it.

I want to go to England ____ March 2nd.[ ]

Don’t worry, sir. I’m sure I can run _________ to catch up with them.

I’d like to help homeless people, so I could ________ food at the food bank.

Lu Xu is known_________ a great writer and thinker.