91. Nam didn't know________ to find more information about the course. A. what B. why C. where D. while 92. He asked________ it was too early to apply for the course. A. if B. for C. when D. that 93. I couldn't sleep last night________ the bar nearby played music so loudly. A. although B. so that C. while D. because 94 .______they moved to the city five years ago, they still remember living in a small town. A. Although B. Whereas C. While D. In order that 95. The students didn't know________ to do to deal with the problem. A. where B. when C. why D. what 96. Lots of people choose to buy houses in the suburbs_________ they can avoid the noise and pollution in the city. A. although B. when C. so that D. so as 97. Minh is ________the most successful student in my class. A. so long B. by how C. by far D. so now 98. My grandfather is the____ oldest artisan in the village; Ngoc's grandfather is the oldest. A. first B. second C. most D. one 99. ________I was talking to my teacher, my friends were waiting outside the classroom. A. In order that B. While C. Although D. So that 100. Lan couldn't decide ________to work with on the project. A. who B. what C. how D. when 101. The villagers are trying to learn English _____ they can communicate with foreign customers. A. so that B. in order that C. although D. A and B are correc