Complete the 12 sentences below. Choose the best answer for each one.
1............... you require assistance during the evacuation, press the red call button, the official notice said.
Wrong!
In a formal notice, inversion with "Should" is more appropriate than ordinary if.
2The contractor may change the delivery date ............... the client gives written approval.
Wrong!
In a formal contract clause, "provided that" is the appropriate conditional linker.
3............... payment is received by Friday, the service will be suspended.
Wrong!
For a concise formal warning, "unless" expresses the negative condition more naturally than "if not" here.
4............... to reject the proposal, the project would lose its funding.
Wrong!
In formal hypothetical style, use "Were the committee" before an infinitive.
5............... my brother's help, I don't know how I'd have managed.
Wrong!
In a conversational sentence, "If it weren't for" is the natural conditional expression.
6............... the figures are inaccurate, we will correct them before publication.
Wrong!
Use "If" for a condition that may trigger an action; "in case" means precaution.
7Visitors may enter the archive ............... they remain with a guide at all times.
Wrong!
For an official permission with a strict requirement, "provided that" sounds appropriately formal and precise.
8............... you're free after work, come over for dinner.
Wrong!
In a friendly email, "If" is the natural register choice.
9You can borrow my scooter ............... you replace the fuel you use.
Wrong!
In everyday speech, "as long as" is the natural way to give a condition.
10............... submit false information, their application will be rejected.
Wrong!
In formal administrative writing, "Should any applicant" is the expected conditional inversion.
11The launch will proceed in May, ............... board approval, in June.
Wrong!
In formal planning language, "failing" means 'if we do not get' the thing just mentioned.
12Sit down immediately ............... you feel dizzy.
Wrong!
For ordinary advice, "if" is the neutral and natural choice.
Done.
Score: 0/12
Answers
- Should you require assistance during the evacuation, press the red call button, the official notice said.
- The contractor may change the delivery date provided that the client gives written approval.
- unless payment is received by Friday, the service will be suspended.
- Were the committee to reject the proposal, the project would lose its funding.
- If it weren’t for my brother’s help, I don’t know how I’d have managed.
- If the figures are inaccurate, we will correct them before publication.
- Visitors may enter the archive provided that they remain with a guide at all times.
- If you’re free after work, come over for dinner.
- You can borrow my scooter as long as you replace the fuel you use.
- Should any applicant submit false information, their application will be rejected.
- The launch will proceed in May, failing board approval, in June.
- Sit down immediately if you feel dizzy.

