Ⅰ 品句填词
1．Let’s analyse(分析) the problem and see what went wrong.
2．Our team defeated(击败) theirs in the competition held yesterday.
3．Is it necessary for me to attend(参加) the meeting?
4．To build a road in the mountainous area was a real challenge(挑战)．
5．The river flowing through the city has been polluted(污染) seriously with household waste.
