They must have been enjoying themselves there，or they __________ so long．
| A．wouldn’t stay | B．needn’t have stayed |
| C．wouldn’t have stayed | D．couldn’t stay |
Let those in need ________ that we will go all out to help them.
| A．to understand | B．understand |
| C．understanding | D．understood |
Anxiously, she took the dress out of the package and tried it on, only ________ it didn’t fit.
| A．finding | B．found |
| C．to find | D．having found |
（）Anxiously, she took the dress out of the package and tried it on, only _________ id didn’t fit.
| A．to find | B．found |
| C．finding | D．having found |
The thief fell to the ground, his left foot _____ and blood _____ down from his mouth.
| A．breaking; running | B．broken; running |
| C．breaking; run | D．broken; run |
Xiamen—Shenzhen High Speed Railway opened to traffic on Dec.28 last year, _______ the two of China’s economic zones.
| A．to link | B．linking |
| C．linked | D．having linked |