I can well remember that there was a time _____ a deep blue sky, the song of the birds, moonlight and flowers could never have kept me spellbound

One of the requirements for a fire is that thematerial _________ to its burning temperature

There’s a saying in China ________ people with the same family name were brothers and sisters 500years ago. [ ]

You should ____________ your hands if you have any problems.

With the software product sales _______, the medium-sized IT companies are having a great time.[ ]