Put the verbs into the correct forms of Conditional sentence type 1, 2, or 3:
He (join) the sport club if he (have) time.
If I (be) in her place, I (refuse) that offer.
If he (take) the advice of his lawyer, he (save) himself.
If I (know) about your illness, I (visit) you in the hospital.
If I (have) a Certificate in Accounting, I (apply) for that job.
If the earth (stop) spinning, we all (fly) off it.
If there (be) no oxygen on earth, life (not exist).
If you (have) any problem, I (be) willing to help you.
If the World War (not happen), millions of people (not die) wrongfully.
If the transportation (not be) improved, the country (not be) developed.