例句： He erases pencil marks.

例句： Her suggestion received a rather unenthusiastic welcome.

例句： We made camp under the shade of trees.

例句： The driver hooted his horn (at us).

例句： He formulated his thought clearly.

例句： Leave all the details to us.

例句： Can you prevail on him to go?

例句： The strike tied up production for a week.

例句： You should learn to be independent of your parents.

例句： A tiny fishing boat was drifting slowly along.