题目内容
在下面定语从句中,用适当的介词填空。
The wolf ________ which the sheep was killed was shot.
He built a telescope ________ which he could study the skies.
The woman, ________ whom I learned the news, is a nurse.
The desk ________ which Jack is leaning is John’s.
He bought a book yesterday, the author ________ which is a teacher.