6.Why does the man look tired today? A.Because he didn't go to bed last night. B.Because he went to bed too late last night. C.Because he went to bed too early last light.
20.What can they do in Yancheng Wetlands Park tomorrow? A.They can go birdwatching. B.They can go fishing and have a picnic. C.They can go birdwatching and have a picnic.