Many firms stop at the first stage of successful alliance planning.
You should judge by yourself,______.(别总是跟在你哥哥的后面).
The president is elected directly by the people by a______．
forced to introduce still further innovations for the reasons given above.
The Americans who acquire their political education immediately they get the fight to vote at the age of 21 are ____ in the world.
He was a very serious and gifted individual, and __ (他不允许任何事情干扰他的研究), not even under the most extreme circumstances.