exercise on 1st conditional

Put the verbs in brackets into the gaps. Form a Conditional sentence - type I. Only use the will-future in the main clauses. Mind the position of the if-clause.

Example: Lisa ________ (not/to open) the window if you _________ (not/to tell) her.

Answer: Lisa will not open the window if you do not tell her. or
Lisa won't open the window if you don't tell her.



1) If we ________(to send) an invitation, our friends___________(to come) to our party.
2) He ________ (not/to understand) you if you____________ (to whisper).
3) They ___________ (not/to survive) in the desert if they _________ (not/to take) extra water with them.
4) If you __________(to press) CTRL + s, you ____________ (to save) the file.
5) You ___________(to cross) the Channel if you __________ (to fly) from Paris to London.
6) Fred __________(to answer) the phone if his wife ___________(to have) a bath.
7) If Claire ___________ (to wear) this dress at the party, our guests _________(not/to stay) any longer.
8) If I__________ (to touch) this snake, my girlfriend __________ (not/to scream).
9) She_________ (to forget) to pick you up if you __________(not/to phone) her.
10) I _________ (to remember) you if you ____________(to give) me a photo.



1) If we send an invitation, our friends will come to our party.
2) He will not understand you if you whisper.
3) They will not survive in the desert if they do not take extra water with them.
4) If you press CTRL + s, you will save the file.
5) You will cross the Channel if you fly from Paris to London.
6) Fred will answer the phone if his wife has a bath.
7) If Claire wears this dress at the party, our guests will not stay any longer.
8) If I touch this snake, my girlfriend will not scream.
9) She will forget to pick you up if you do not phone her.
10) I will remember you if you give me a photo.


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