Pollution has harmed our lives in many different ways until now ．（ ）
| A． |
so much |
B． |
so far |
C． |
as usual |
D． |
as before |
They didn't go home ______they finished their work．（ ）
A．becauseB．whereC．untilD．while
The glass bridge in Shijiazhuang is ______than any other one in China．（ ）
A．longB．the longest
C．longestD．longer
_____ with my father's handwriting， mine is poor．（ ）
A．CompareB．ComparedC．ComparingD．Compares
We can overcome all the difficulties by_____ together．（ ）
A．workB．worksC．workingD．worked
Man can't live ______water．（ ）
A．ofB．forC．fromD．without