1) obliterate, augmented
2) firmly, based
3) pleased, find
4)pretence
5)agreeable
6)improve
7)serene
8)sane
9)sharpen
10)sarcastically
11)cat like
12)scattering
13)hand : clock
14)gullible : shrewd
15)muscle : tendon
16)sentence : paragraph
17)His youngest son has just started going to school
18)) Must he go? Yes, he should.
19)I wont’ let you leave till the end of the act.
20) When he was charged with a murder, he said he has an alibi.

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