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| Q.20 | Select the most appropriate meaning of the underlined idiom in the given sentence. Our idea about garbage collection did not work, so we are back to square one. | |
| Ans | 1. Handing over the problem to someone else | |
| 2. To start something all over again | ||
| 3. Not to know what to do | ||
| 4. To give up doing something |
Correct Ans Provided: 2
