．番茄果实成熟过程中，乙烯释放量、果实色素积累量及细胞壁松弛酶活性变化规律如下图。从该图可得出乙烯能促进( )①细胞壁松弛酶活性升高 ②果实色素积累 ③番茄果实发育 ④番茄果实成熟
________ is from your home to school？
Five kilometers．（ ）
A．How longB．How farC．How soon
There ______ a sports meeting in our school next month．（ ）
A．will beB．will have
C．is going to have
I prefer friends _____ are different from me．（ ）
A．whichB．whoseC．who
We will visit the history Museum if it _______ tomorrow．（ ）
A．won't rainB．doesn't rain
C．wasn't raining
The telephone ______ by Alexander Graham Bell in 1876．（ ）
A．was inventedB．is invented
C．invented
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