Giúp mình nha
----- Nội dung dịch tự động từ ảnh -----
Turn the following sentences into the passive voice.
1. They were cleaning the floor when I came to their house.
2. The president promises that he will solve the environmental problem next year.
3. Oliver, I think someone is following us!
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4. Where are they going to hold their wedding ceremony?
ΠΟΤΙΣΤΙΚΟ ΠΡΟΓ
5. A volcanic eruption can destroy a huge area in a short period of time.
6. The experts conducted an economic survey in this area yesterday.
7. Nobody has used this car for ages since it's too old.