曾有一段时间，他不愿意去上学   _________was a time________ he hated to go to school
即使明天下雨，我们也要出发。 _________  _________ it rains tomorrow, we will still start out.
你的学习进行的如何？ How are you ________ _________ with your studies?
这些额外的工人不再需要了。 The extra workers won't be needed                ..
Anny必须藏起以躲避纳粹追捕。
Anny had to hide in order _________ __________ _________ caught by Nazi.