In order to ________ a good knowledge of English, he gave up his job and went to study in an English school.
Human facial expressions differ from those of animals in the degree ______ they can be controlled on purpose.
Chan’s restaurant on Baker Street, ______ used to be poorly run, is now a successful business.
Those successful deaf dancers think that dancing is an activity ________ sight matters more than hearing.
It is reported that two schools,_______ are being built in my hometown,will open next year.
Some pre-school children go to a day care center, __________ they learn simple games and songs.