Paul doesn’t have to be made________ .

A tourist will easily lose his way in shanghai_____ he has a map or a guide.

What did he come here for?— He came here especially to________your acquaintance. [ ]

It is difficult for children to change their eating habit later in life.________，parents should encourage healthy eating from an early age.

The traffic problems have severely affected economic development ________ we must spare no efforts to solve them[ ]