________ about wild plants that they decided to make a trip to Madagascar for further research.
| A．So curious the couple were |
| B．So curious were the couple |
| C．How curious the couple were |
| D．The couple were such curious |
--- I need to advertise for a roommate for next term.
--- _______？Mary is interested.
| A．Why bother | B．Why not | C．So what | D．What for |
We are taught that a business letter should be written in a formal style in a personal one.
| A．rather than | B．more than | C．better than | D．less than |
--- Is this the first time you ___ Xiamen?
--- No. But the first time I ____ here, the city wasn’t so beautiful.
| A．visited, come | B．visited, have come | C．have visited, came | D．have visted, have come |
_______ is known to us all that the old scientist, for _______ life was hard in the past, still works hard in his eighties.
| A．It; whom | B．As; whose | C．As; whom | D．It; whose |
The wounded soldier died _____I had a chance to know his name and family.
| A．after | B．while | C．until | D．before |