Everyone wants to reach the top of the mountain，but all the happiness happens while you it．（ ）
| A． |
climb |
B． |
climbed |
| C． |
are climbing |
D． |
have climbed |
Theaters may have a brighter future if they can provide a movie experience people cannot get at home．（ ）
| A． |
that |
B． |
who |
C． |
whom |
D． |
what |
We are going to take the high﹣speed train to Xi'an tomorrow，so an early arrival at the station____________．（ ）
| A． |
advises |
B． |
is advised |
| C． |
is advising |
D． |
was advised |
A stupid man tells a woman to shut up，while a wise man tells her that her mouth is quite beautiful it is closed．（ ）
| A． |
unless |
B． |
since |
C． |
when |
D． |
though |
The boss asked Tim to go and out if there was anyone else absent．（ ）
| A． |
find |
B． |
finding |
C． |
to find |
D． |
found |