Plastic bags won’t be allowed to be used for free in the supermarkets. They can’ t __________ easily, which does great harm to our environment.

To avoid his shop being stolen again, he thought it over and at last decided to set a security________ in it.

What’s the weather like in Beijing in winterThere is______snow and it is _______cold.

eorge will marry Alice, ______ has not beenannounced yet, has spread around.

We finally bought several books by Shakespeare, ______ is one.