【题目】 Obviously he had set up a situation _____ he didn’t have to blame, or even recognize, his own shyness.

【题目】Make a mark _____ you don’t understand.

【题目】Shall we________our discussion and have some tea?

【题目】Few people paid full attention to their health conditions _____ they were seriously ill.

【题目】________a teacher has given permission is a student allowed to enter the classroom.

【题目】John thinks it won’t be long ______he is ready for his new job .

【题目】I had to buy _____ of these books because I didn’t know which one was the best.

【题目】—Ben and Sue aren’t home, are they?

【题目】Nathan likes his job because he ______enjoy the beauty of nature.

【题目】Across China, ordinary people are becoming more and more ______ of the issue of environmental protection.