I would have felt more comfortable if you _______ receiving my email a little more quickly.
There is no decision yet ______ when the work might start.
.The two brothers look so much ___ that we can’t___ one from the other.
For some time now, Chinese people under the leadership of CPC____ the contents of Scientific Development Theory in the course of practicing socialism in China.
I had just stepped out of the bathroom___ I heard the steps.
.After the new technique was introduced, the factory produced___ in 2001 as the year before.