Before you mail this letter， you should check agai

Before （write) ________ an application letter, you should be aware what kind of people the

Before signing the delivery note, you should check that the consignment is complete. W

Would you just______an eye over this letter before I put it in the post？A．throwB．castC．fli

You should check the air in the tyre______you start on a long automobile trip.A．asB．before

What should you do first before you want to indoctrinate a new colleague？A.Check your

When you are reading a novel you should check yo