With a Canadian VISA and work permit, can I make flight transit in the US

[xiaoxiaoxiaoxiao]

Hi, here is my situation:
1. I have a single entry visa to Canada
2. I have a valid Canadian work permit
3. I do not have a US visa

my questions are:
1. I am going back to China, can I make a flight transit in the U.S. (Canada-US-China, and then China-US-Canada)?
2. I saw that it says a single entry visa MAY allows you enter Canada from the US multiple times, so my single entry visa would still be valid after I traveled to the US, right?

 

[steaky]

No, you need a US transit visa