______ apple fell from the tree and hit him on ______ head.
| A．An; the | B．The; the | C．An; 不填 | D．The; 不填 |
His glasses, _______ he could see nothing, was taken away by a naughty boy.
| A．which | B．without which | C．with which | D．without those |
The computer, _______ he paid ￥3,000, was once owned by his uncle.
| A．which | B．for which | C．that | D．to that |
In the past we lost many chances, _______ we paid little attention.
| A．which | B．that | C．in which | D．to which |
The pen, _______ I had been writing for ten years, was broken.
| A．with which | B．with that | C．as | D．with it |
Mary has two brothers, ________ are doctors.
| A．both of they | B．both of whom | C．both of them | D．whom of both |