The very idea_________a man can think of driving in such a state is really unthinkable.

How much is the petrolper liter today? —Oh, 6.00 yuanIt ______ sharply since last month

．— Why does Michael know so much about Angkor Watt?　　　　— He ________ have been there, or…

Finally, Ben gave up his big apple to Tom ________ a chance to paint the wall.[ ]

It’s reported that the new underground line has been completed. — Yes, but it hasn’t been made clear _____ it’s to be opened to traffic. [ ]