19． I have will be yours sooner or later ．
A．No matter what B．No matter whatever
C．Whatever D．That
18． I will accept the gift is none of your business．
A．If B．Whether
C．What D．Which
17． I was free that evening
A．It happened to B．It happened that
C．That happened D．It was happened that
16．The fact he is an orphan is well known．
A．what B．that
C．which D．/
15．The thought he might fail in the exam worried him ．
A．which B．that
C．when D．/
14．It is possible he misunderstood I said．
A．that ,that B．what, what
C．what , that D．that , what
13． I can’t understand is he wants to change his mind．
A．That , that B．Which , what
C．What , what D．What, why
12．That is there appears a rainbow in the sky ．
A．what B．when
C．why D．however
11．The trouble is we are short of tools ．
C．how D．why that
10．It doesn’t matter I rest or not ．
A．if B．whether
C．that D．when