Put the verbs in brackets into the correct passive tense.

Put the verbs in brackets into the correct passive tense.

1) This ancient bridge was
(build) by the Romans.

2) The medals for the Tokyo 2020 Olympic Games
(make) from recycled mobile phones.

3) I’m happy to say that all the exercises
(do) correctly.

4) Delicate fabrics
(must wash) at a low temperature.

5) The information
(constantly update).

1) This ancient bridge was built by the Romans.
To solve this, we need to change the verb "build" to its passive form. In the passive voice, the past participle of the verb is used with the auxiliary verb "was" or "were" (depending on the subject) + past participle. So, "build" changes to "built" in the past participle form.

2) The medals for the Tokyo 2020 Olympic Games are made from recycled mobile phones.
Again, we need to change the verb "make" to its passive form. Using the same rule as before, "make" changes to "made" in the past participle form. Additionally, since the sentence is in the present tense, we use the auxiliary verb "are" instead of "was" or "were".

3) I’m happy to say that all the exercises have been done correctly.
In this sentence, the verb "do" needs to be changed to its passive form. "Do" changes to "done" in its past participle form. We also need to use the auxiliary verb "have" in its present tense form, followed by "been".

4) Delicate fabrics must be washed at a low temperature.
In this sentence, the verb "wash" needs to be changed to its passive form. "Wash" changes to "washed" in its past participle form. We also need to add the auxiliary verb "must" to indicate necessity.

5) The information is constantly updated.
For this sentence, we only need to change the verb "update" to its passive form. "Update" changes to "updated" in the past participle form. We also use the auxiliary verb "is" to match the subject "information". The sentence is in the present tense.