The garden is the best place ________ (grow) flowers.
This pair of jeans ________ (match) his white shirt.
Listen! How wonderful the music________ (sound) ！
Mary, ________ (not be) afraid of the dog. It never bites.
Keep quiet, the students ________ (prepare) for the coming exam.
________ (ride) a bike to school is good for your health.
Sandy spends a lot of time________ (chat) with her e-friend on the Internet.
How long does it take you________ (walk) to school every day?
I don’t have any ideas, I don’t know where ________ (go).
Would you like________ (drink) a cup of tea?
Lang Lang has been a famous ________ (piano) at the age of thirteen.
My mom asked Daniel and Sandy to help ________ (them) to some orange juice.
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When Gregor Mendel was teaching high school students, he noticed that plants had different traits (特征). For example, some pea plants were tall, w________ others were short. Mendel wondered why, so he decided to experiment.
He c________ the seeds (种子) that were produced. He planted these new seeds and waited for the r________. He wondered whether the new plants would be of medium h________. But all the plants that grew from the seeds were tall.
Mendel wanted to see what would h________ to the next generation (一代). He crossed the tall plants with each other in the same way he had experimented with the tall and short plants. When the n________ plants grew, three fourths of the plants were tall, and one fourth were short.
Mendel found out that a plant r________ a message from each of its parents, and that message is carried by the plant's genes (基因). For example, a pea plant gets a gene for tallness or shortness from one or both of its parents. Mendel a________ found out that some genes were stronger than others. The gene for tallness was stronger than the gene for shortness. So a plant would be t________ if it had one gene for tallness and one gene for shortness. But if a plant had two genes for shortness, it would be short.
Mendel had made a great d________, but few understood it at that time. Mendel became famous only after his death.
The moon ________ (come) out last night. It looked nice.