How much longer do you think we can ________? —Ten days, maybe. I’m not sure.[ ]

_____ you _____ take a bus to school– Yes, but now I usually go to school on foot.

So difficult ______ it to live in an English-speaking country that I determined to learn English well.

_______his knowledge of the mountainouscountry, John Smith was appointed as our guide.

Have you heard the story of "TheMerchant of Venice" —No. When and where does the story ______