Each year thousands of people travel to Britain in order...

Câu hỏi: Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.
Each year thousands of people travel to Britain in order to improve their standard of English. For many, however, this can be a painful experience due to the fact that it involves (29) ________ a strange school, staying in sometimes unpleasant accommodation and living in an unfamiliar culture. One (30) _____________ these problems is the Homestay method. With this, students are each assigned a teacher suited to their language requirements and interests. As well as giving individual tuition, the teacher provides the student with information about (31) ______________activities that are available locally, and takes them on trips. Students get "Between ten and twenty hours of tuition a week and are also expected to join in the family's daily activities. The students speak English at all times and therefore learn how to use the language in everyday (32) ______________. Homestay programs usually last for up to four weeks. Although costs are higher than of regular language schools, students can feel (33) ___________ that they will be receiving top - class language teaching in a safe and pleasant environment.
The word or phrase which best fits the gap (31) is...
A. what
B. where
C. how
D. why