选词填空，补全对话A: —I'm {#blank#}1{#/blank#} (sad; excited) because we're going to climb the mountain.
B: —That's {#blank#}2{#/blank#}(grey; great).
A: —I'm {#blank#}3{#/blank#}(scared; tired).
B: —Why are you scared?
A: —Because she's going into the cave. I heard a{#blank#}4{#/blank#} (toys; noise).
B: —Be careful!
