12. 主+be +adj. +to do: 不定式一般用主动式，与主语存在逻辑上的动宾关系，所以当不定式的动词是不及物动词时，则应在其后加上适当的介词。

11.              say “hi” to sb.

                 Please remember me to sb.

向“某人”问好   Send my regards to sb.

                 Send the best wishes to sb.

10.  n.+after +n.=one +n. +after another

       一个接一个（强调动作的重复）

     n. +by +n.: 一个接一个（强调动作的变化）

     tree after tree/day by day

9.       n.

        doing/to do sth

        sb to do sth

prefer+  sth to sth

        doing A to doing B

        to do A rather than do sth

        that sb (should) do sth

8. be responsible to sb for sth

7.  follow the instructions

    follow one’s advice

    as follows

6.  along the river:沿着河流

   over the river:在河的正上方

   through the forest:穿过森林

   by the river:在河边

   on the bank:在河岸上

  specially+  for-phrase

  especially

5.           to do

4. as well

  as well as

  might/may as well=had better