______ in his studies, he didn't know that all the others had left.
| A．Buried | B．Burying | C．Having buried | D．Bury |
We are living in an age _______ many things can be done on computers and the Internet.
| A．which | B．that | C．whose | D．when |
There was _______ time _______ I hated to go to school.
| A．a；that | B．a；when | C．the；that | D．the；when |
Anyway, that evening, _______ I’ll tell you more about later,I ended up staying at Rachels place.
| A．when | B．where | C．what | D．which |
Small computers need small amount of power, _____ means you use less electricity.
| A．what | B．that | C．which | D．as |
There were dirty marks on her trousers _______ she had wiped her hands.
| A．where | B．which | C．when | D．that |