English grammar practice exercise, upper-intermediate.
In this exercise you will practise as long as, in case of, in case and unless.
Fill the gap in each sentence with as long as, in case of, in case or unless.
|We use in case to express that we are doing something in preparation for something which might happen.||
Take an umbrella in case it rains!
I'll buy two bottles of wine in case one is not enough.
|In case of|
|We use in case of to say what we should do if or when something happens.||In case of fire, leave the building as quickly as possible.|
|As long as|
We use as long as to express a condition, to say that something
will happen only on condition that something else happens.
It expresses that one thing depends on another.
I'll lend you the book as long as you promise to give me it
back next week.
= If you don't promise to give the book back next week I will not lend you it.
You can go to the party as long as you come back before midnight.
= You can go to the party but you must promise to be back before midnight.
|As long as has the same meaning as providing or provided.||
You can go to the party, providing / provided you come
back before midnight.
We're going skiing next week, providing / provided there's enough snow.
|We use unless to say that something will happen if something else doesn't stop it happening.||
You won't get the job unless you prepare for the interview.
= You will only get the job if you prepare well for the interview.
Don't do it unless he tells you to.
= Only do it if he tells you to do it.