1) Projectile weapons have proven _______ in battle. a) efficient b) effective 2) The 200-page instruction manual was ________ in teaching the teen to repair the car himself a) effective b) efficient 3) Walking may be an _______ way to get to the office, but driving is more _______. a) effective, efficient b) effective, effective c) efficient, effective 4) His disorganized method of cleaning the house was ______ but it was not _______; in the end, the house was clean, but it took much longer than it should have. a) effective, effective b) efficient, effective c) effective, efficient 5) Simple antibiotics are ______ against this virus. a) efficient b) effective 6) You need a highly ______ production manager if you want to reduce costs. a) efficient b) effective 7) Doing research at the library can be _______, but using the internet is often more _______. a) effective, efficient b) efficient, effective 8) I have always known James to be highly competent and _______ in all aspects of his job. a) efficient b) effective 9) My new car is very fuel-_______, and it gets 40 miles per gallon. a) efficient b) effective 10) We are losing too much revenue; we need a more ________ means of production. a) effective b) efficient

Efficient / Effective

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