Có tổng số kg gạo là:

\(300 \times 60 = 18000 (kg)\)

Sau một ngày cửa hàng đó bán hết số gạo là: 

\(18000 \times \dfrac{1}{9}=2000(kg) \)

Của hàng đó còn lại số kg gạo là: 

\(18000- 2000=16000(kg)\)

Đổi 16000 kg = 160 tạ

Đáp số: 160 tạ

Nếu phơi 420 kg cà phê tươi thì thu hoạch được số kg cà phê khô là: 

\(420 : 20 \times 5 = 105(kg)\)

Đáp số: 105 kg

1 took

2 has not missed

3 cried

4 has seen

5 scored

6 went

VI

1 has taken 

2 was

3 began

4 has always existed

5 has always been

6 gave

7 has appeared

8 appeared

9 has become

10 has never had

VII

1 grown up

2 has lived

3 became

4 made

5 posted

6 have watched

7 has already had

8 hasn't been