1.You may use the room as you like_you clean it up afterwards.Aso far as Bso long asCin case Deven if2.My parents dont mind what job I do_I am happy.A. even though B. as soon asC. as long as D. as though3.Shall we have our picnic tomorrow? _it doesnt rain.AUntil BWhileCOnce DIf4.The engineers are so busy that they have zero time for outdoor sports activities，_they have the interest.A. wherever B. wheneverC. even if D. as if5.ust use this room for the time being, and well offer you a larger one _ it becomes available.A. as soon as B. unlessC. as far as D. until6._ they decide which college to go to, students should research the admission procedures.A. As B. WhileC. Until D. Once7.Our holiday cost a lot of money.Did it? Well, that doesnt matter_ you enjoyed yourselves.A. as long as B. unlessC. as soon as D. though8.Excuse me for breaking in, _I have some news for you.Aso BandCbut Dyet9._I accept that he is not perfect, I do actually like the person.AWhile BSinceCBefore DUnless10.We managed to arrive at the place_the car had broken down on the way.Awhether BifCunless Dthough11.Dont be afraid of asking for help_it is needed.Aunless BsinceCalthough Dwhen12.Were going to the bookstore in Johns car. You can come with us_you can meet us there later.Abut BandCor DThen13.John shut everybody out of the kitchen_he could prepare his grand surprise for the party.Awhich BwhenCso that Das if14.The film brought the hours back to me_I was taken good care of in that faraway village.Auntil BthatCwhen Dwhere15.Someone called me up in the middle of the night, but they hung up_I could answer the phone.Aas BsinceCuntil Dbefore