IV. Hoàn thành các câu sau đây theo điều kiện loại 1 của những từ trong ( ).

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.