I want to buy a blue jacket to ________my blue trousers.

As PM2.5 readings reached as high as 900 in some cities, people are more _____ to get lung cancer in such conditions. 

According to the law, all foreigners have to ________ with the local police within two weeks of arrival.

To celebtate her mother’s birthday, she prepared ______ drink and cakes, sharing with neighbours.

Interest is as________to learning as the ability to understand，even more so.