Do you have a pen?I want _____ a letter.
Look at the ‘No parking’ sign. You______ park your car here.
We really enjoyed the school trip yesterday, ______ it rained in the afternoon and some of us got wet.
He works hard at English ______ he can be an English teacher in the future.
— What do you think of swimming? —It’s not easy, but I won’t ______ I want to be a good swimmer.
_____ you are, _____ mistakes you will make in the exam.