He was encouraged to start again _________ he had failed. 

--- What do you think of the film Schindler’s List? --- This is the best film _______ I have ever seen.

Some teenagers turn a deaf ear to their parents’ advice, ________ they know it does good to them.

 In my opinion, all Mr. White ___ good to his students in his class at present. He is very strict in their study. 

．—I wonder whether the speaker has arrived.— ________ ，I’ll check at the reception desk.