Question 1
The project deadline was yesterday and they haven't submitted anything yet. They _____ about it completely.
Options: might have forgotten, must have forgotten, can't have forgotten
Daily Life - Deducing Outcomes
This is a fill-in-the-blank exercise. Click on each blank and choose the correct answer from the dropdown. Some sentences may have more than one blank, so make sure you complete all of them. Use modal verbs to speculate and make logical deductions about everyday situations, including what is possible, probable, or impossible.
Practice 2 of 2
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Question 2
The sales figures dropped by 50% this quarter despite increased marketing efforts. The new marketing strategy _____ as planned.
Options: must have worked, can't have worked, might have worked
Question 3
The experiment produced unexpected results three times in a row. There _____ an error in our methodology.
Options: might be, can't be, must be
Question 4
The client approved the proposal immediately without any questions. Our presentation _____ very convincing.
Options: can't have been, might have been, must have been
Question 5
The factory is running at full capacity but profits are still declining. The problem _____ with production costs, but we need more data to confirm.
Options: must be, could be, can't be
Question 6
Some of the files are missing from the report, so the assistant _____ all the data.
Options: must have included, might not have included, can't have included
Question 7
They launched a nearly identical product with the same features just two weeks after our announcement. They _____ our plans somehow.
Options: can't have known, must have known, might know
Question 8
The software update was released yesterday but the bug still exists. The developers _____ this particular issue.
Options: must have fixed, might have fixed, can't have fixed
Question 9
We invested heavily in employee training last year and productivity has increased by 40%. The investment _____ worthwhile given the 40% increase in productivity.
Options: might be, must be, can't be
Question 10
The warehouse inventory shows 500 units, but we only sold 200 last month. The remaining stock _____ from previous months, as no new inventory has been added recently.
Options: can't be, must be, might not be
Question 11
The research team published their findings ahead of schedule. They _____ working overtime to meet the early deadline.
Options: might be, must have been, can't be
Question 12
The supplier promised delivery by Friday, but it's now Monday and nothing has arrived. There _____ a delay in shipping.
Options: can't have been, must have been, might be
Practise Daily Life - Deducing Outcomes with this interactive fill-in-the-blank exercise of 12 questions. Choose the option that correctly completes each sentence, then submit to check your answers and get instant feedback on every choice.
Practising grammar in real sentences — rather than memorising rules in isolation — is one of the most effective ways to make a structure stick. You can retry as many times as you like to build accuracy and confidence using Daily Life - Deducing Outcomes in everyday English.
Looking for more practice? See all exercises for this lesson.