I.

2. look! our techer.........she ....... long, black hair.( come/have)

-->look! our teacher is coming she is having long, black hair

3.this boy like.... games but hates... lessons.(play/do)

-->this boy likes playing games but hates doing lessons.

viet lai cau sao cho nghia k doi

nhung cau khac dang nghi ha

a.b+1 chia hết cho 8

=> a.b chia 8 dư 7

=> a.b chia 8 dư 1.7

=> a hoặc b chia 8 dư 1

và b hoặc a chia 8 dư 7

=> a + b chia 8 dư 1+7

=> a+b chia 8 dư 8

=> a+b chia hết cho 8 (đpcm)