Choose the best answer: 1. The boy acted ________ he didn’t know me A. so that B. such as C. as soon D. as if 2. Hourly output by workers ______ 1.3% in the first quarter. A. reduced B. declined C. felled D. slowed 3. There is no reason ____ he should refuse to join us. A. why B. because C. that D. so that 4. Some of these methods will work, but _____ will not. A. other B. the other C. another D. others 5. The country is suffering from a ________ of food. A. lacking B. zero C. poverty D. shortage 6. The ______ between rich and poor is getting bigger and bigger in some places. A. gap B. difference C. variation D. hole 7. There are good opportunities to learn skills ______ the job. A. in B. above C. on D. at 8. On ______, my mother earns 5000 yuan a month. A. whole B. total C. average D. balance