选出你所听到的句子。 (     )1. A. I have heard that China will visit the moon by ship. B. I have heard that China will visit the moon by space. C. I have heard that China will visit the moon by spaceship. (     )2. A. We are planning to plant flowers in the park this Sunday. B. We are planning to plant trees in the park this Sunday. C. We are planning to plant trees around lake this Sunday. (     )3. A. We can cross streets when we see the sign like this. B. We can't cross streets when we see the sign like this. C. We can cross streets when we see the red sign on. (     )4. A. We must choose a beautiful Christmas tree. B. We must choose a beautiful Christmas present. C. We must buy a beautiful tree. (     )5. A. You should smoke here. B. We can't smoke there. C. You shouldn't smoke here.