用所给词的正确形式填空（本部分共5小题，每小题1分，共5分）

小题1:In winter, it often _______.

小题2:This hotel is ______________,we can find a clean one.

小题3:Don’t play soccer in the street.It’s ________.

小题4:I will go to the _________ to meet my parents.They will get here by plane.

小题5:We often have no classes _______________the weekend.

大头瘟一般先由鼻旁肿起，向面颊蔓延，甚则波及（）。