B1 Modals (Should / Must / Have to / Might) Grammar Test 2 (15 Questions) – IELTS, TOEFL, YDS Practice
Enhance your grammar with this B1 modals test. Practice should, must, have to, and might with 15 questions and detailed explanations for IELTS, TOEFL, and YDS.
Modal verbs such as “should,” “must,” “have to,” and “might” are fundamental in expressing meaning clearly in English. At the B1 level, learners are expected to distinguish between advice, obligation, necessity, and possibility. These differences are not only grammatical but also contextual, making modal verbs a key topic in intermediate-level learning.
In exams like IELTS, TOEFL, and YDS, modal verbs are often tested through real-life situations that require careful interpretation. For example, “must” often expresses strong obligation or logical deduction, while “have to” usually refers to external necessity. “Should” is commonly used for advice, and “might” expresses uncertainty or possibility.
This test includes a variety of carefully designed questions to help you practice these distinctions. Each question reflects realistic usage and exam-style structure. The explanations at the end are highly detailed, helping you fully understand the reasoning behind each answer and avoid common mistakes.
RESULTS
#1. You ______ finish your homework before going out.
#2. She looks very tired. She ______ get some rest.
#3. It’s very dark outside. It ______ be late.
#4. I’m not sure, but he ______ come to the meeting.
#5. You ______ drive so fast. It’s dangerous.
#6. Employees ______ wear ID badges at all times.
#7. We ______ leave now if we want to catch the bus.
#8. He ______ be at work now. His car is in the parking lot.
#9. You ______ try this new restaurant. It’s excellent.
#10. I ______ go to the gym later, but I’m not sure.
#11. Students ______ submit their assignments on time.
#12. She ______ be very happy when she hears the news.
#13. You ______ not use your phone during the exam.
#14. We ______ take a taxi because we are late.
#15. He ______ study more if he wants to pass the exam.
Explanations
1. The sentence expresses obligation, especially before another action, requiring a modal of necessity.
Answer: have
2. The sentence gives advice based on a situation, so an advice modal is needed.
Answer: should
3. The sentence shows a logical conclusion based on evidence, requiring a strong certainty modal.
Answer: must
4. The sentence expresses uncertainty, so a possibility modal is used.
Answer: might
5. The sentence gives negative advice about behavior.
Answer: shouldn’t
6. Rules in workplaces require a strong obligation modal.
Answer: must
7. The sentence expresses necessity to achieve a goal.
Answer: have
8. The presence of evidence leads to a logical conclusion.
Answer: must
9. The sentence gives a recommendation or advice.
Answer: should
10. The sentence expresses uncertainty about a future plan.
Answer: might
11. The sentence expresses obligation in an academic context.
Answer: have
12. The sentence gives a likely expectation, functioning as advice/prediction.
Answer: should
13. The sentence expresses prohibition, requiring a negative obligation modal.
Answer: mustn’t
14. The sentence expresses necessity due to being late.
Answer: have
15. The sentence gives advice for achieving a goal.
Answer: should






