When you keep goldfish, it is a good idea to put some stones at the of the tank(鱼缸).—So the fish can hide behind them.

______some people dislike may be others’ favorite.

What did you ________ yesterday

The Science Museum, ____________ we visited during a recent trip to Britain, is one of London’s tourist attractions.

The old man lived ______ in a small house, but he didn’t feel ______.