1) experienced a) in b) on c) at 2) associate a) to b) of c) with 3) congratulate ..... an anniversary a) with b) on c) to 4) deal ... a) for b) with c) at 5) provide sb ......smth a) for b) with c) in 6) praise.... a) for b) on c) at 7) concentrate a) on b) at c) in 8) responsible ... a) from b) for c) on 9) proud ... a) in b) for c) of 10) happy ...sb a) on b) with c) for 11) a reply .... a) on b) to c) with

un 1 use of english b2

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