--What’s your brother’s name?--_____ name is Dave．

—Don't be angry with your kid when he makes a mistake again, will you? —No. I won't. I know that ______of us are perfect after all.

______ is no doubt______ Bob can win the first prize in the match.

______is very important for us to learn English well.

— Mary, can you take good care of ________ while I’m not at home?— Of course, I can.