Modals of Probability Quiz EnglishLink Quiz: Modals of Probability EnglishLink: Modals of Probability Present and Past Deductions 1. The server is down and David is the only IT technician in the building right now. He ______ in the server room. must be can't be might have been 2. I saw Maria at the coffee machine here in Madrid at 9:00 AM. She ______ to Barcelona for the morning meeting. must have traveled can't have traveled might travel 3. The ground is completely wet outside the laboratory. It ______ last night. must rain can't have rained must have rained 4. Where is the engineering director? I'm not sure, but he ______ an email to the client right now. might be writing must have written can't write 5. The radar system crashed again yesterday. Do you think a power surge ______ it? could cause could have caused must cause 6. This blueprint ______ right. The measurements are completely wrong for this component! might be must be can't be 7. Why didn't the client reply to our proposal yesterday? They ______ it yet. may not have read must not read can't read 8. The front door was unlocked when I arrived this morning. The security guard ______ to lock it. must forget must have forgotten might forget 9. We don't have the final test results yet. There ______ a delay in the testing facility. could be can't be must have been 10. The software bug ______ the main system failure, because the main system was turned off during the test. might have caused must have caused can't have caused Submit Answers
