Khi tia sáng truyền từ không khí sang nước thì góc khúc xạ lớn hơn góc tới góc khúc xạ bằng góc tới góc khúc xạ luôn vuông góc với góc tới góc khúc xạ nhỏ hơn góc tới

Choose the best answer.

I think you should buy _____  pack of mineral water instead. And you can also buy _____  snacks such as potato crisps, 3 kilos of mandarins, 2 kilos of apples, 3 bunches of bananas, ______  cookies and soft candies.

Choose the best answer.

We should decorate our living room with _____ orange banner. We also need ________  ribbons, balloons, party hats and costume.

Choose the best answer.

I think that ______ cauliflower is not enough for 3 people. Let’s buy one more.