问题

It is easy to be grateful for the good things, ______ a life of rich fulfillment comes to those who are also thankful for the setbacks

A:that
B:which
C:while
D:when

正确答案是：

同类题型

Jack is late again. It is ______ of him to keep others waiting.[ ]

here is my toy car You promised.–_____, my dear, but you know mum is pretty busytoday. Tomorrow, OK

The teachers ________ nice to us in our school. We ________ them some presents on Teachers’ Day.

The case of the Moonstone was　　unusual.

I hear Mr. Wang is leaving. –_________ why