I attend my friend’s coming-of-age ceremony, Mum—No, unless you see to ________ that you will be home before 10：00 P．M.

The university attaches great importance ________ social science.[ ]

There were _______ shops in the city in1982 than in 1990

It’s easy to learn a country’s culture if one is ____ with its language and customs.

ns very heavily in this area, which has_______ annual rainfall of 7,000 mm, _______ideal environment for forests.