A helicopter is able to       and land straight up or down.

to his teaching work, she has no time to take care of her own child.

He has a large family to       .

--- Mum, my trousers are a bit too long.
--- Tomorrow I’ll have one inch       them.

He was reading a very interesting story, completely_______himself in the story.

. My son wastes a lot of time playing online games every day. Now I regret  ____the computer .

. If you don’t know how  to ______yourself at table in a foreign country, you should copy the host.

Mother always tells me not to _____ anyone, even if he is not well educated.

．He went to school      his new sports shoes.

Though       experience, he managed to finish the project.