There are _____ places of interest we could visit in Beijing.

.I can’t answer for ________ that the boyis honest.

It is the test system, _____ the teachers, that is to blame for the heavy burden of middle school students nowadays

Long time no see. Haven’t you graduated from college—Yes. I ______ Social Science for 4 years in Shanghai.

________ is know to us all is that the old worker, for _______ life was hard in the past, still works hard in his seventies.