她每天早上跑步半小时。
for half an hour 中的for表示什么？可以不填吗？
She ___ ___ an hour every morning.是否少了一个空？
for一般用于段时间之前，表示“多长时间”的意思。
应该是少了一个空，如果是填空，那就填写
She runs for half an hour every morning.
如果自己下句子，我认为下面的更好一些：
She does some running for half an hour every morning.
do some running 跑步
应该是少了一个空，如果是填空，那就填写
She runs for half an hour every morning.
如果自己下句子，我认为下面的更好一些：
She does some running for half an hour every morning.
do some running 跑步
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第1个回答 2008-10-14
She runs for half an hour every morning.
第2个回答 2008-10-14
She goes jogging half an hour every morning.
第3个回答 2008-10-14
She runs half a hour every morning.
