Only by working together ______ solve this problem.
Answer and explanation
Correct answer: C. can we
- Step 1: A fronted 'Only by ...' phrase triggers inversion; the modal 'can' moves before the subject.
Answer
can we.
Why not the others: "we do" is wrong because inversion is required and 'do' is wrong. "we can" is wrong because inversion is required after 'Only by ...' at the start. "do we" is wrong because 'do' cannot replace the modal 'can' here.
Practise more Verb patterns, modals and agreement.
Free questions with an explanation for every one, and full timed Cyprus English Language Certification (B2, C1, C2) mock tests.
More Verb patterns, modals and agreement questions
- The teacher told the students ______ talking.
- Seldom ______ such a remarkable performance.
- The decision was made without ______ anyone.
- It's high time we ______ the problem seriously.
- Both Nicos ______ his sister are studying medicine.
- Either the students or the teacher ______ responsible for the mistake.