Chia động từ

9. What ________ (Jane/ say) if Jim (tell0 _______ her the truth.
10. The boys (shiver) _____________ with cold if they (swim) ________ in this lake.
11. The door (not lock) ____________- unless you (press) ____ the green button.
12. Jim won’t be late if he (take) _______________ the bus at 6 o’clock .
13. Mary isn’t home, but if you (want) _____ to leave her a message, I (give) ________ it to her.
14. If jack (clean) ________ the floor, I (do) __________ the washing.
15. the children (be) _____ happy if you (give) _______ them some sweets.