—What do you think of the two backpacks? —______ of them are very nice.
--- Mr. Wang’s never been to Canada, has he? --- . He went there on business last week.
--- will your mother come back? --- In two days.
---Let’s go fishing if it this weekend. --- But nobody knows if it .
--- Could you tell me ? --- His home is quite far away from the office, I think.
--- Do you know the kid with Bob is talking over there? --- Yes, it’s my cousin.