The boy wanted to ride his bicycle in the street, but his mother told him ______. [ ]

Why? Tom, your shirt is so dirty! — Mum, I ______ my storeroom downstairs

_____ all the inventions have in common is ______ they have succeeded.

When the cheering _____ , the president continued his speech.

Mary is the best student in our class. I wonder whether anyone has got _______ mark in this examination.