A better future is the goal of the Chinese people， _____ it's also the common interest of the world．（ ）
A．soB．andC．orD．but
Sally， I heard you're going to America． Will you stay there？
Two whole years．（ ）
| A． |
How soon |
B． |
How often |
C． |
How long |
Wow…another gift! What's in the box？
I'm not sure． It be a pair of sports shoes．（ ）
| A． |
must |
B． |
may |
C． |
will |
A smile costs _________，but gives so much．So we should learn to smile．（ ）
| A． |
something |
B． |
anything |
C． |
nothing |
D． |
everything |
I got up early this morning my grandma at the airport．（ ）
| A． |
to pick up |
B． |
picking up |
C． |
picked up |
Who is boy playing soccer over there？
He is my classmate， Li Ping．（ ）
| A． |
a |
B． |
不填 |
C． |
the |