1) The funding for the project was withdrawn so that really threw a monkey wrench _____ our business. a) for b) to c) on d) in 2) Money problems have been a thorn _____ our side since the day we got married. a) in b) on c) into d) around 3) That child is a real pain ____ the neck. a) on b) into c) in d) for 4) The game on Saturday is against the current champions, so it will be a _____ nut to crack. Source: www.theidioms.com a) difficult b) tough c) trying d) harsh 5) The game went smoothly until Jeremy threw a ____ into it by fussing about the rules. a) monkey wrench b) thorn c) roadlock d) nut to crack 6) Julie’s having a ______ time at work lately. a) tiring b) trying c) trial d) trivial 7) Health inspectors are a ______ in the side of most restaurants. a) thorne b) throne c) thorn d) thron

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