荣宝斋原名________，光绪20年取________之意，更名为荣宝斋。
参考答案：松竹斋，以文会友、荣名为宝
-Hello, Sandy. This is Jack. What are you doing?
-I'm watching a match. It started at 7 p. m. and on for another half an hour. [ ]
A.has been
B.was
C.had been
D.will be
用手锯锯割时，其起锯角不能超过25°。（）
