Can you work out the maths problem? —Sorry, I can ______ understand its meaning.

Every morning, I get up at six o’clock, ________ and have a quick breakfast.

It is not expected ____ he said caused so much discussion at the meeting.

Please pass me the book ________ cover is green.

Have you ever watched Lin Shuhao’s basketball match?–Yes, of course, he is such _____ excellent player that I want to see it _____ second time.