单项选择题
That tree, the branches（）are almost bare, is a very old one.
A．whose B．of which C．in which D．on which
单项选择题 Talking in a very low voice is（）
单项选择题 A librarian may have a lot of free time during the day to make（）for the evenings when he has to work.
单项选择题 Who can apply for a senior post in a municipal library（）
