5 more questions

1) What are the differences betweeen these words?

Say vs speak vs talk

Hear vs Listen

Look vs See

2) Has anybody taken the CPE test? What is the format of its? I've seen lots of sources which tells the different formats. One example taken from CPE practice tests- Mark Harrison-for new tests for the revised Cambridge Certificate of Proficiency in English, the Reading part consists of 4 parts lasting for 1hour 30 minutes whilst in other sources, they said Reading parts lasts for 1 hour only. Has the format changed? ( Am I right to use changed here or been changed?)

3) What do they mean by saying: For the average student the semester in front of the camera is thus a slow peeling away of layers of perfomance inhibitions. What is peeling away?

4) Why do people say" Or so you'd think"?

5) When I went into the dining room next morning, the_______ of the dinner were still on the table

a) remains

b) remnants

The answer is a. Why is b not suitable here?