It is safe to eat chicken that________fully, but most people still dare not do that because of the H7N9bird flu .

If you want to make progress, you’d better be strict _____ yourself ______your studies.

Why not go on a trip to Beihai Park by Mobike this Sunday—Good idea! But I wonder .

What a heavy rain! Will it last long— ______ . We are getting into the raining season now.

Can you lend me the book Gone with theWind — Sorry. I returned it to the library justnow. Maybe it is still ____.