【题目】 —My computer doesn't work!

【题目】I still remember ________ one occasion, we were sitting ________ the shade of a big tree playing and chatting happily.

【题目】Mary ________ a lot of Japanese by communicating with the native people in Japan.

【题目】The Oxford English Dictionary is necessary for learning English, so you'd better buy ___.

【题目】________ for a long time, but he tried his best to catch up with his classmates.

【题目】The report of the opinions of experts _________ that three hours of outdoor exercise a week _______ good for one’s health.

【题目】Has he (安排) for a car to pick them up from the airport?

【题目】________ around the beautiful campus, they were taken to the classroom to observe a maths lesson.