The government has taken some measures to solve the shortage of electricity, but it will be some time_________ the situation improves.

didn’t attend his daughter’s graduation ceremony, but he does wish he there.

s a very interesting book. I’ll buyit, _______.

Effective measures have been taken to prevent _______pollution.

Drinking tea is a common practice in daily life, isn’t it?—Yes, teahouses continue to __________up in and around the city of Nanjing.