1 . I walked up to the top of the hill with my friend, ___________ we enjoyed a splendid view of the lake. (用适当的词填空)

2 . Because the moon’s body blocks direct radio communication with a probe, China first had to put a satellite in orbit above the moon in a spot______it could send signals to the spacecraft and to Earth.(用适当的单词填空)

3 . （语法填空）They were well trained by their masters ________ had great experience with caring for these animals.