Many old people take a walk after supper ____ have good health.
----Don’t forget to give my best wishes to your uncle. ----_________.
----Why do you always sleep ________?----Because I’m afraid of the dark.
China is larger than _________ in Africa.
Mr. Li asks us to remember that __________ careful we are, _________ mistakes we will make.
----Would you like to go to the amusement park? ----If Jack does, __________.