It remains __________ whether this teaching method will be better than that one.
| A．to see | B．to be seen |
| C．seeing | D．seen |
We were on the point of discussing financial investment_____ the telephone rang unexpectedly.
| A．while | B．when | C．as | D．once |
How can I ever concentrate on my work if you_____ continually_____ me with such silly
questions?
| A．have, interrupted | B．had, interrupted | C．are, interrupting | D．were, interrupting |
The large, water-spouting statue, called “Merlin” －half lion, half fish－ is the____ of Singapore.
| A．symbol | B．sign | C．signal | D．scene |
There has been_____ rising demand for grain as_____ industrial material in spite of the nation’s
good harvests.
| A．/, an | B．a, an | C．the, an | D．a, / |
______ the owner’s electric blanket was on fire, the pet cat kept scratching on the bedroom door till she woke up, ____ her life miraculously.
| A．Realized, saving | B．Having realized, saved |
| C．Realizing, saving | D．Realized, saved |