Complete with the correct modal. If you have a fever,you __ rest and drink plenty of fluids. musn't should can't don't Complet with the Present Perfect form. Paul __ a car accident has lost has had has gone has bought

## Step 1<br />The first question is about the use of modal verbs in English. Modal verbs are auxiliary verbs that express necessity, possibility, permission, or ability. In this case, the sentence is giving advice about what to do when you have a fever. The verb "should" is used to express advice or recommendations, which fits the context of the sentence.<br /><br />## Step 2<br />The second question is about the use of the present perfect tense in English. The present perfect tense is used to describe an action that started in the past and continues in the present, or an action that happened at an unspecified time in the past. In this case, the sentence is talking about an event that happened in the past (Paul having a car accident) and its impact on the present (Paul has lost his car). Therefore, the correct form of the verb to use is "has lost".