The activities organized by our school really gave us a platform ____ we learned team spirit.

Theparentswereunsettledforthefirstfewdays,_____abouttheirson’ssafety.[ ]

It rained heavily overnight and not until this morning____.

I want to buy that kind of cloth because I________ the cloth_______ well.

The new bridge over the Jin Shui River last year, which makes it very easy to go to the city center.