常見的有：advise,decide, discuss, find out, forget, inquire, know, learn, regard, remember, see, settle, teach, tell, think(=consider), understand, wonder等。這些疑問代(副)詞有what, when, where, which, how, whether等,但不包括why,如：
He does not know how to go there
when to speak before strangers.
who(m) to visit.
which one to choose.
You can decide whether to go forward or stay here.
when to see a doctor.
I will show you what to do.
where to go.
how to deal with it.
其中,1)和2)中不定式的邏輯主語仍是句子的.主語,分別爲He和You;而3)中不定式的邏輯主語則不是句子的主語I,而是賓語you.
9) The director of this organization must know .
[A] to manage money, sell his product and beable to satisfy stockholders
[B] managing money, selling, and be able to satisfy the stockholders
[C] how to manage money, sell his product, and satisfy the stockholders
[D] money management, selling and being able to satisfy the stockholders
10) To tell you the truth, I really don't know how deal with a man like him.
[A] can I[B] well[C] to[D] much
