Do you think a radio is useful in learning English? —Sure. A radio can _____ listening English songs and reports.

I kept looking at the man, wondering _______.

Most children got a lot of pocket money from their parents and relatives duing Spring Festival, but some didn’t know ____ they should do with it.

It will be a while_____ the real-estate problems _____ are the root cause of the price rises are solved.

The city of Nanchong has grown so fast that it’s at leastwhat it used to be.