Each spring brings a new blossom of wildflowers in the ditches along the highway I travel daily to work.
There are some particular blue flowers that have always caught my eye. I’ve noticed that they bloom only in the morning hours and the afternoon sun is too warm for them. Every day for about two weeks, I see those beautiful flowers.
This spring, I started a wildflower garden in our yard. I can look out of the kitchen window while doing the dishes and see the flowers. I’ve often thought that those lovely blue flowers from the ditch would look great in that bed alongside other wildflowers. Every day I drove past the flowers thinking, “I’ll stop on my way home and dig them.” “Gee, I don’t want to get my good clothes dirty…” Whatever the reason, I never stopped to dig them. My husband even gave me a folding shovel（铲子）one year in my car to be used for that expressed purpose.
One day on my way home from work, I was shocked to see that the highway department had destroyed the ditches and the pretty blue flowers were gone. I thought to myself, “Way to go, you waited too long. You should have done it when you first saw them blooming this spring.” A week ago we were shocked and saddened to learn that my oldest sister has a terminal brain tumor（肿瘤）. She is 20 years older than me and unfortunately, because of age and distance, we haven’t been as close as we all would have liked. I couldn’t help but see the connection between the pretty blue flowers and the relationship between my sister and us. I do believe that God has given us some time left to plant some wonderful memories that will bloom every year for us. 
And yes, if I see the blue flowers again, you can bet I’ll stop and transplant them to my wildflower garden.
Why did those flowers the writer saw only bloom in the morning?

A．Because it was hot in the afternoon.

B．Because someone picked them away.

C．Because someone took them into houses.

D．Because the writer passed them in the morning.

Which of the following statements is right according to the passage?

A．The writer’s sister died of lung tumor.

B．The writer was regretful when she heard her sister’s death.

C．The writer planned to dig the flowers to give them to her husband.

D．The writer’s husband planned to plant some flowers in the garden.

The writer wrote the passage to tell us ________.

A．to enjoy what we have now

B．to value now and not to lose chances

C．to protect the beautiful flowers we see

D．to love those who are your close relatives