用正确的介副词填空：The boy stumbled _____ something and hurt his leg.

5.The boy stumbled _over____ something and hurt his leg.
The boy was stumbled 才能用by 因为是被绊倒
但是这里没有被动 所以用 over 因为 stumble over 是被……判倒
有问题看看字典就明白了
7.They work __in___ pairs to work out maths problems.
in pairs 副词 成双的
8.The doctor is not care enough __at___ all.
at all 完全没有
另外 和all 有关的短语有
in all 总共
for all 尽管
P29 2.The teacher looked __for___ the newspaper and found it.
look for 就是寻找嘛 然后就找到了```

stumble by 被什么拌住
in pair 成对
at all 完全
look for 寻找

by
in
at
for
stumble by 被什么拌住
in pair 成对
at all 完全
look for 寻找

by
in
at
for