The dress is quite expensive. But it_____ well and the colors won’t run.

The scientists recommend that studies ________ to find out what side effects the medicine might cause.

We had a party _______ having class last Friday

The British are not so familiar with different cultures and other ways of doing things, _____ is often the case in other countries.

–What’s new on the Web–Look！An amber______ the ancient spider’s web.