(1)Challenge sb to do sth 。向…挑战，邀请…比赛
They challenge us to a swimming contest.
(2)to give (accept) a challenge ( 接受 ) 挑战
Everybody ought to have his proper share.
I had no share in the mater.
(3)Share (with，between) 分配，共有
They shared the profits between them.
I will share with you in the undertaking.
If you cannot go，let him go instead.
(2)instead of 代替
I will go instead of you.
(1)manage to do 完成，达成
We finally managed to get there in time.
(2)manage with 办事，处现事务
We can‘t manage with these poor tools.
(3)manage on 生活，过活
How will she manage with her husband gone.
(1)afford to do 足以承担
I cannot afford to pay such a high price.
Reading affords pleasure.
(1)would rather do 宁愿
He said he would rather stay at home.
(2)rather than 宁愿
I had rather dance than eat.
Have you ever been there？
Why ever didn’t you go.
If the band(乐队)ever plays again，we will dance.
Thank you ever so much.
(1) available 通用的，有效的
The season ticket is available for three months.
Where else did you go？
Hurry，else you‘ll be late.
Housekeeping involves cooking， washing dishes， sweeping and cleaning.
One foolish mistake can involve you in a good deal of trouble.
A sentence that is involved is hard to understand.
Clouds involved the hilltop.