等引导的时间状语从句或if引导的条件状语从句，通常用一般现在时态表示将来。其基本格式是：一般将来时态的陈述句或祈使句＋时间或条件状语从句。还需要注意积累一些其它的时态搭配关系。故确定句子时态的第三条诀窍是：三、复合句，句套句，动词时态要呼应，习惯用法须记清。
例7shedid
ttellus_______________
ahowoldthepatie
twas
bhowoldwasthepatie
t
chowoldthepatie
tis
dhowoldisthepatie
t
例8whe
willyoutellhimthegood
ews
fiwilltellhimaboutitassoo
ashe______________back
acomes
bcame
cwillcome
discomi
g
例9doyouk
owif_____________back
extweekhe_________backpleaseletmek
ow
if
ahecomeswillcome
bwillhecomecome
chewillcomecomes
dwillhecomewillcome
例10ourphysicsteachertolduslight_____________fastertha
sou
d
atravelled
bhastravelled
ctravels
dwilltravel
fr