Sweet wormwood（青蒿）is a common plant in China and Tu Youyou is the woman _________used the special power of the plant to save __________lives．（ ）
| A． |
which， millions of |
B． |
who， millions of |
| C． |
whose， million of |
D． |
who， million of |
Willile will learn swimming， no matter how much it ．（ ）
| A． |
costs |
B． |
takes |
C． |
spends |
D． |
pays |
May I use your dictionary？
．（ ）
| A． |
Never mind |
| B． |
You are welcome |
| C． |
It doesn't matter |
| D． |
Certainly． Here you are |
He was so tired that he fell asleep he went to bed．（ ）
| A． |
as if |
B． |
even though |
| C． |
ever since |
D． |
as soon as |
Last Thursday when I got to the airport， I______ I had left my ticket at home．（ ）
| A． |
forgot |
B． |
realized |
C． |
believed |
D． |
seemed |
There are two new buildings near the sea， and of them are very tall．（ ）
| A． |
none |
B． |
all |
C． |
neither |
D． |
both |