I have forgotten______ you put the dictionary.

Not knowing much of the world yet, simple-minded teenagers are easily _____. [ ]

When would it be foryou to go to the science museum with me— I am free this Friday afternoon. Let’smeet at 2 p.m. at the school gate.

The Internet gives students thechance to have the materials they need _________ to them quickly and cheaply.

James, can you tell me ________— Paul I haven’t seen him for years. He used to be a shy and quiet boy.