I’ve done no research on this and so, there is no way I can be sure that these are the top ten idioms used in English.
Adding idioms to your spoken language will make you sound more natural and more like a native speaker. But PLEASE DON’T use them all the time!
Choose two or three idioms that you like and remember them. Use them at the right time and don’t try to force them into every sentence.
1.g 2.j 3.a 4.i 5.b 6.h 7.c 8.d 9. f 10.e
Check out Richard King’s book for more help with your IELTS exams!