Both Class 3 and our class won’t be able tofinish the work unless they ___ each other

I don’t suppose Sabrina will agree, _______?

Have you seen your aunt lately? —Yes, in fact I saw her yesterday．I_________ her for several months

(2013·河南豫西五校高三质检)Helen has just heard the news from her father ________ her boyfriend David will come back soon.

With the gas _____, they had to quit the car and walked.