القواعد (الوحدات ١–١٢) · اللغة الإنجليزية. دي 10 أسئلة من بنك منصة مجموع على الدرس ده، من السهل للصعب. اضغط «اعرف الإجابة والشرح» تحت كل سؤال بعد ما تحله. على مجموع فيه 53 سؤال على الدرس ده بالشرح.
'Where's Hoda?' 'She could be in the lab; she often works there in the afternoon.' Here 'could' expresses ___.
الإجابة الصحيحة: (أ) a 50% possibility
الشرح: In the table of present deduction, may/could + base verb shows a 50% possibility. The speaker is guessing where Hoda is now; it is not about past ability.
You've been coughing all day. You ____ see a doctor.
الإجابة الصحيحة: (ج) should
الشرح: 'Should' is used to give advice or a recommendation.
'You should have told me about the problem earlier.' The speaker is ___.
الإجابة الصحيحة: (د) blaming the listener for not acting earlier
الشرح: Should have + past participle expresses blame or regret about the past: the listener did not tell the speaker, and that was a mistake.
Which sentence is correct in both grammar and meaning?
الإجابة الصحيحة: (د) The roads are blocked; there must have been an accident.
الشرح: A sure guess about the past is must have + past participle, so 'there must have been'. 'an hour ago' cannot follow must be, and should have means blame.
I don't know why the bus is late. It ______ in heavy traffic, but I can't be sure.
الإجابة الصحيحة: (ج) might be stuck
الشرح: 'I can't be sure' shows a weak present possibility, so we use might + be, not must (certain) or can't (certain not).
Choose the sentence that has the same meaning: 'Perhaps the storm damaged the old bridge.'
الإجابة الصحيحة: (ج) The storm may have damaged the old bridge.
الشرح: 'Perhaps' with a past action means we are uncertain it happened: may have + past participle. 'Must have' is near certain, 'can't have' says it did not happen, and 'should have' is for blame or regret.
Which sentence shows that the speaker is almost certain that something did NOT happen?
الإجابة الصحيحة: (ج) Ali can't have seen the warning sign.
الشرح: can't have + past participle means we are certain it did not happen. might not have is only a weak guess.
You look exhausted. You ______ to bed earlier last night, and you ______ to bed early tonight too.
الإجابة الصحيحة: (ج) should have gone / should go
الشرح: 'Last night' is the past, so blame is should have gone. 'Tonight' is the future, so advice is should + base verb.
Somebody should have told me about the change. → I ______ told about the change.
الإجابة الصحيحة: (ب) should have been
الشرح: The passive of a past modal is modal + have been + past participle. 'Should be told' would refer to the present or future, not to a past failure.
Someone must have broken into the house through the back window. → The house ___ through the back window.
الإجابة الصحيحة: (د) must have been broken into
الشرح: The passive of 'must have broken into' is 'must have been broken into', and the preposition 'into' stays after the verb. Dropping 'into' changes the meaning to the house itself being damaged.
أول ١٠ أسئلة في كل مادة مجانية، وكل سؤال معاه شرح.