【题目】My cousin volunteered in the Children's Home yesterday. His job was to ________ food and clothes.

【题目】The teacher speaks very loudly ______ all the students can hear her.

【题目】Some students think their parents are too strict ________ them.

【题目】Daniel ________ (解释) the maths problem to me carefully until I understood it.

【题目】Life is always full of ________ (挑战) and chances.

【题目】In some ________ (西方的) countries, the most important holiday is Christmas.

【题目】Most of the parents thought ________ (高度) of the school though it was set up last year.

【题目】Thank you very much for ________ (邀请) me to your birthday party.

【题目】It is ________ (有礼貌的) to knock on the door before entering a room.

【题目】My grandfather is in his ________ (九十多), but he still plays tennis now and then.