The construction of the gym caused much noise, it difficult for people nearby to sleep.
______ for the breakdown of the school computer network, Alice was in low spirits.
With more and more forests disappearing, today the public is much concerned about the way _________.
Without the friction (摩擦力) between feet and the ground, people would ______ be able to walk.
Don’t take his remarks too seriously. He was so sad that I don’t think he really _________ what he was saying.
--- Could you take a message for Mr Brown? --- Certainly. I ________ him about something else in any case. So it _______ any bother.