$4.$Complete the sentences with the correct tense forms of the verbs in brackets.

If you don't put up $($not$/$put up$)$ this shelf, you won't have anywhere to put your books.

If I were you, I $...($tell$)$ her how you feel.

Even if he $...($ask$)$ them, they wouldn't have agreed to come.

Unless you $...($feel$)$ any better, you can take the rest of the day off.

If she $...($not$/$threaten$)$ him, he wouldn't have left.

$6.$ He $...($not$/$go$)$ with her if he had known she would behave so irresponsibly.

I wouldn't have been able to do it unless she $....($help$)$ me$.$

Sometimes if you $...($take$)$ a chance, it pays off.

Keep you voice down in case he $...($overhear$)$ us$.$

If she $...($be$)$ more experienced, she would be more likely to get the job.

If the food $...($not$/$be$)$ so bad, we wouldn't have complained.

Sales will increase provided that the advertising campaign $...($be$)$ successful.

If you $...($spend$)$ less on clothes, you would be able to save some money.

You had a very narrow escape. If your payments $($fall$)$ into