— Show me your permit, please．
—Oh, it's not in my pocket．It
| A．might fall out | B．could fall out |
| C．should have fallen out | D．must have fallen out |
Today, we’ll discuss a number of cases_______ beginners of English fail to use the language properly.
| A．which | B．as | C．why | D．where |
_______ on earth do you suppose_______ this?
| A．What; could do | B．What; could have done |
| C．Who; do | D．Who; could have done |
American women were______ the right to vote until 1920 after many years of hard struggle.
| A．ignored | B．refused | C．neglected | D．denied |
We should keep ourselves_______ of the latest development of science and technology.
| A．informing | B．informed | C．to inform | D．inform |
To those_______ in martial arts(武术), the period from 1972 to 1975 is often said_______ the Bruce Lee era.
| A．involving; being | B．to involve; to be | C．involved; to be | D．involve; being |