The city ______ by an army of 600 men was difficult to take.
| A．defending |
| B．having been defended |
| C．having defended |
| D．defended |
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 |
—Hi, Mary. It never entered my head that you’d come. What a surprise!
—I’m on a business trip in the city and I ______ in on you.
| A．dropped | B．drop | C．had dropped | D．have dropped |
We should try every effort to prevent violence from happening at school, ______ more and more students would drop out of school ______ their personal safety could not be guaranteed.
| A．though; if only | B．though; so long as | C．for; now that | D．for; if |