3.如果明天不下雨的话，我们的老师肯定会和我们一起打篮球的。

Our teacher is sure to join_ it    rains    tomorrow.

2.他如果看电视太久了，他的父母会不高兴。   

If he_，his parents_.

1.假如那个聪明的男孩参加游戏节目的话，他也会赢大奖。

He _as  well  if    the clever boy_.

10. Unless she_(get) up early, she_(miss)  the  early    bus.

9.    A letter_(write) to his grandparents if he_(get)  his  report card this week.

8.    _they_(have)  a   match    if    the P.E. teacher_(be)    busy?

7. I_(go)  to  the beach unless it_(rain)  this  week.

6. If Mr Green_(say)    I am hard-working, my parents_(feel)    glad.

5.   We play volleyball.(改为由Let's开头的祈使句）
                    volleyball.

5. Lana_(buy)    a new dress if the old one_(be)    out of style.