Before she realized what happened, she got ___ on the head and lost consciousness.
| A．hit | B．to be hit | C．hitting | D．to have been hit |
She ______ me at the other end of the telephone line, though we hadn’t seen each other for a long time.
| A．knew | B．realized | C．saw | D．recognized |
—Where are you ________?
—I’m going to the airport to ________ my friend.
| A．heading on; pick up | B．going for; pick down |
| C．heading for; pick up | D．heading away; pick down |
I’m ______ captain of the class team at school and I’m also ______ member of the Senior High team.
| A．不填; a | B．a; a | C．the; the | D．the; 不填 |
From time to time a crocodile has snatched someone _______ he or she is even aware that the crocodile is there.
| A．when | B．until | C．since | D．before |
_____ unemployment and crime are high, it can be assumed that the latter is due to the former.
| A．Before | B．Where | C．Unless | D．Until |