______ as a platform, the Belt and Road Initiative strengthens the ties between China and the rest of the world, as well as between various regions with China.
A.To serve B.Having served C.Served D.Serving
She's always suggesting ways ______ I can improve my cooking. I know she means well but this really annoys me.
A.that B.which C.how D.when
I always read newspapers backwards because the back pages are ______ the sport is.
A.that B.where C.how D.what .
Mr. Smith gave her one of the pills that he ______ for stomachache or something like that.
A.will have taken B.had been taken C.has taken D.had been taking
______ the content of this letter can be confidential; security is an issue that you must address.
A.Although B.Since C.Unless D.After
Those charged ______ mend their ways within given periods, and those failing to do so will be shut down.
A.shall B.may C.can D.could
