1. when you open the safe you (see) a small black box 2. when you (do) 4000 kilometers you can drive it at 70 k.p.h 3. Don't drive at more than 50 k.p.h till your car (do) 4000 kilometers. 4. i can't leave the country till the police ( return) my passport 5 when a bottle of champagne ( be) opened for twenty- four the wine is not fit to drink 6. you ( not know) how good oysters are till you have tasted one. 7. that road will not be safe till the floods (subside ) 8 As soon as everybody has gone to bed the mice (come) out of their holes.

2 câu trả lời

1. will see

2. do you do

3. do

4. return

5. when is a bottle of champagne opened for twenty- four the wine is not fit to drink ?

6. won't know

7. have subsided

8. come

Chúc bạn học tốt !

=>

1. Will see

2. Do

3. Do

4. Return 

5. Is

6. Won't know 

7. Have subsided 

8. Come 

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