A:1.
B:2.
C:3.
86×9=____ 507×8=____ 450×8=____
98÷7=____ 56÷5=____ 97÷4=____
— I'm hungry. ________ there any bread in the fridge, Mum?
— None, but we have cakes. Would you like to have one?
我国有众多的海洋,____和____是我国的内海。