The l9th century___the greatest number of laws stopping the rights and progress of the black.[ ]

you pass me the sugar, please-OK, ____

he visited the new school, he showed great interest in everything he saw

I can’t stand _______ with Jane in the same office. She just refuses _______ talking while she works.

Jenny, would you please_______ my dog when I amaway. — No problem.A．look up