Hissisterdoesn'twritealettertoherfriendtoday.(用yesterday替换today)Hissister_____
Hissisterdoesn'twritealettertoherfriendtoday.(用yesterday替换today)
Hissister__________alettertoherfriendyesterday.
BettyandKevindidtheirhomeworklastnight.(改一般疑问句)
_____BettyandKevin_____theirhomeworklastnight?
Itwassunnythedaybeforeyesterday.(用cloudy改选择疑问句)
Wasitsunny_________thedaybeforeyesterday?