. For miles around us there was nothing but a desert, without a single plant or tree ______.
| A．in the distance | B．at a distance | C．in sight | D．out of sight |
The manager, ______his factory’s products were poor in quality, decided to give his workers further training.
| A．knowing | B．known | C．to know | D．being known |
---- Have you seen Mike these days?
---- Yes. I saw him the day before yesterday. In fact, I ______ him for three years.
| A．didn’t see | B．haven’t seen | C．hadn’t seen | D．don’t see |
If you want to do the experiment again, you had better be more careful ________ you made a mistake.
| A．when | B．why | C．where | D．that |
All of us want very much to see these recommended movies, especially _____ you referred to just now.
| A．as | B．which | C．the one | D．one |
--- Where did Mary’s parents buy the beautiful souvenir?
--- It was in the same village_______ they spent their holidays last year.
A．that B．when C．as D where