Question

We thought there were 35 students in the dining hall, ________, in fact, there were 40．

[　　]

A．

while

B．

whether

C．

what

D．

which

Answer 1

答案：A
解析：

句意为：“我们原以为餐厅中有35名学生，而事实上有40名。”while此处为并列连词，意为“然而；却”，表示对比关系，用来连接并列句。while作从属连词时意为“当……时候；虽然；只要”。其余各项均不能用作并列连词。