33.Do you know what ______ so much greenhouse gases in the air?
A: producing
B: has produced
C: will produce
D: produces
A: producing
B: has produced
C: will produce
D: produces
举一反三
- 智慧职教: Do you know what ____ so much greenhouse gases in the air?
- -- How much is the latest style of the watch?[br][/br] -- Sorry, I have no idea. But it and I' will know the price soon. A: has produced B: has been producing C: is produced D: is being produced
- All the greenhouse gases are produced by industry nowadays.()
- 你知道约翰这次失败的原因吗？ A: Do you know what has led to John’s courage this time? B: Do you know what has led to John’s sucess this time? C: Do you know what has led to John’s failure this time?
- What you will achieve tomorrow has much to do with how much knowledge you ___________ today.