10.It was not until midnight _______ they reached the camp s

10.It was not until midnight _______ they reached the camp site.A.that B.when C.while D.as
11.Hearing the cat coming,off ________.
A.fled all the mice
B.away fled the mice
C.all the mice fled away
D.fleeing all the mice
12.The Changjiang River is one of ______ in the world.
A.the longest river
B.longest rivers
C.the longest rivers
D.longer rivers
13.It was in New Zealand _______ Elizabeth first met Mr.Smith.
A.that
B.how
C.which
D.when
14.It was twenty miles from our city to the village ______ the accident happened.
A.that
B.when
C.then
D.where
15.After that we never saw her again,nor _______ from her.
A.did we hear
B.we heard
C.has we heard
D.we have heard
16.It is what you do rather than what you say _______ matters.
A.that
B.what
C.which
D.this
17.Out ______,with a stick in his hand.
A.did he rush
B.rushed he
C.he rushed
D.he did rush
18.I just wonder _______ that makes him so excited.
A.why it does
B.what does he
C.how it is
D.what it is
19.Not only ______ to stay at home,but he was also forbidden to see his friends.
A.he was forcing
B.he was forced
C.was he forcing
D.was he forced
20._______ is our belief that improvements in health care will lead to a stronger,more prosperous economy.
A.As
B.That
C.This
D.It