As he works in a remote area, he visits his parents only ____.

—Mom，dad is smoking again!—Well，let him cut it ________ gradually since old habits die hard.

Although she doesn’t like to live in the country, _______ , she goes there for a picnic．

－Have you finished your experiment report, Jane?－Oh, my God. I’ve _______ forgotten all about that.

In my view, London's not as expensive in price as Tokyo but Tokyo is______in traffic.