You can’t borrow books from the school library ______ you get your student card.
| A．before | B．if | C．while | D．as |
He’s wearing a pair of sunglasses to protect his eyes ________ the strong sunlight．
| A．from | B．in | C．to | D．with |
I planned ________ to see you last week, but I was ill.
| A．to have come | B．to come | C．to be coming | D．to have been coming |
.While building a tunnel through the mountain, ________ .
| A．an underground lake was discovered | B．there was an underground lake discovered |
| C．a lake was discovered underground | D．the workers discovered an underground lake |
The train ________ arrive at 11∶30, but was an hour late.
| A．was about to | B．was likely to | C．was supposed to | D．was certain to |
.The two ladies are ________ the same age, but there seems to be ten years ________ them.
| A．at, between | B．about, among | C．as, among | D．of, between |