地球上纬度越高的地方（）
A.出没星的地方范围越大
B.恒显星区的范围越大
C.恒隐星区的范围越小
D.所见星的总数越少
参考答案：B, D
We’ve just moved into a bigger house and there’s a lot to do. Let’s _________ it.
A．keep up with
B．do away with
C．get down to
D．look forward to
