Having checked the doors were closed, and _____all the lights were off, the boy opened the door to his bedroom.
| A．why | B．that | C．when | D．where |
I ______ all day and I haven't a penny left.
| A．had shopped | B．am shopping | C．have shopped | D．have been shopping |
As you are now a member of our society we shall let you ______ our secrets.
| A．into | B．through | C．to | D．between |
I agree with him ______, but not entirely.
| A．until a certain point | B．to some point | C．to some extent | D．until a certain extent |
I'm afraid you've mistaken me ______ my twin sister.
| A．for | B．with | C．to | D．by |
Man's life is often compared ______ a candle.
| A．with | B．as | C．to | D．in |