Subjunctive mood & conditionals

1. Choose the correct form: “It is vital that the patient ____ hydrated during recovery” (stay / stays).

2. In the fixed expression “Suffice it to say, the experiment succeeded”, what mood is “Suffice”: Subjunctive or Interrogative?

3. Choose the correct form: “The editor demanded that the fabricated quotation ____ removed immediately” (be / was).

4. Choose the correct counterfactual form: “I wish it ____ possible to observe the eclipse from our island tonight” (were / was).

5. Choose the correct form: “The board proposed that the scholarship fund ____ expanded next term” (be / is).

6. Choose the correct form: “The judge ordered that the witness ____ the courtroom” (leave / leaves).

7. Choose the correct past counterfactual: “If we ____ measured the mass before heating, we could have calculated the water lost” (had / would have).

8. Choose the correct form: “Whether the tide ____ high or low, the reef survey begins at dawn” (be / is).

9. In the sentence “Water freezes at 0 °C at standard pressure”, what grammatical mood is the verb “freezes”: Indicative or Subjunctive?

10. Choose the correct conditional completion: “Had the captain checked the tide table earlier, the ferry ____ departed on schedule” (would have / will have).

11. Choose the correct form: “It is essential that the specimen ____ kept at a constant temperature” (be / is).

12. Choose the correct form: “He acts as if he ____ every capital city in the world” (knew / knows).