Question

______the extremely hot weather, we continued having classes．

1. A.
   Thanks to
2. B.
   In addition to
3. C.
   In defence of
4. D.
   Regardless of

Answer 1

D
解析：
短语辨析。  A．由于     B．除……之外   C．保护 D．不顾；
不管。句意：不管这极度炎热的天气，我们继续上课。结合语境可知选D为最佳答案。