Entering the room, I found my father______at the desk and______something.A．seat... writeB．

Green：I left my umbrella in my room．Wait while I go back to get it． Ben： __________ ，the w

Why should you wear a self－contained breathing apparatus before entering the engine room a

听力原文：W: I found an expensive diamond necklace in the rest room this morning.M: If I we

听力原文：（A) The presenter is entering the room.（B) Some booklets have been passed out to

Prior to entering a cargo pump room, you should ensure that _____.A.the forced ventilating

Which of the following contains an adverbial clause of cause？A．I found my books where I le