您要查找的是不是：
- 他们星期二开门吗? Are they open on Tuesdays?
- 吗 morphine
- 他们星期六开门吗? Are they open on Saturdays?
- 这家店平日是早上9点开门吗? Does the shop open at 9 am on weekdays?
- 他们周日开门吗? Are they open on Sundays?
- 今天理发厅开门吗? Is the barber shop open today?
- 他们整天艰苦地挖壕沟。 They toiled all day digging the trench.
- 是吗 is that right
- 你好吗？ How are you?
- 你知道吗 did you know
- 是吗？ Is it really?
- 星期天开门吗? Is it open on Sunday?
- 不是吗 isn't it
- 真的吗？ No kidding?
- 这样可以吗？ Is that OK?
- 超市今天开门吗? Is the supermarket open today?
- 星期二下午有空,我们在那时见面好吗? Tuesday afternoon is clear. Shall we meet then?
- 星期二那个航班还有空吗? Do you still have vacancies on your Tuesday flight?
- 你能替我开门吗? Would you open the door for me, please?
- 他们能操纵选举吗? Can they fix the election?
