You can ___________ the words with an online dictionary.

Tom has _____ money that he can’t afford the digital camera.

Astronomers have discovered that three planets have sizes and temperatures similar to _______ of Earth.

A ______ to this problem is expected to be foundbefore long.

nce the H1N1 flu is spreading, it’snecessary that whoever has a fever _________ to hospital as soon as possible.