— Ten dollars, please!
— How terrible! I ______ bringing my wallet with me.
| A．was forgetting | B．forgot | C．had forgotten | D．am forgetting |
The traffic on the main streets has a longer green signal than______ on the small ones.
| A．one | B．this | C．that | D．it |
People develop ______ preference for a particular style of learning at ______ early age and these preferences affect learning.
| A．a; an | B．a; 不填 | C．不填; the | D．the; an |
It was only a very short time _______ the young lady found her cellphone stolen as she got on the crowed bus.
| A．before | B．when | C．since | D．after |
When television was first introduced, the extent _______ it would affect society could not have been foreseen.
| A．of which | B．of what | C．to which | D．in which |
He thought the jar made ______ earth ______ little value and let me have it ______ only 5 dollars.
| A．of; of; for | B．from; of; by | C．from; with; for | D．of; of; by |