ou’re learning to drive, _______ agood teacher makes a big difference

should be restricted on all food production andthe government should take _______ “scientific attitude” toward geneticallymodified food

Could you meet me at the airport?—I’d like to，but I______Shanghai when you return

Have you written anything on Chinese traditional food so far—_ __， but I have a plan for it.

In that school, English is compulsory for all students, but French and Russian are________.[ ]