It will be a long time Mr Black back from abroad

o his research work, the professorcared little about any other things．

Has the design of the city square been decided?—No, it’s still ______ to suggestions.

__________ is known to all, China will he an ________ and powerful country in 20 or 30 years’ time.

— Do you know our town at all?— No, this is the first time I ______ here. [ ]