Mr Harris apologized ______ the children ______ the lady ______ what they had done

After a long walk, he was tired and had to stop a rest.

32. The poor boy said he often went ______ and sometimes almost starved______ in the old days.

In the global economy, a new drug for cancer, _________ it is discovered, will create many economic possibilities around the world

Two places of interest in Beijing are well-known to people from home and abroad. One is the Great Wall. ___________ is the Summer Palace.