问题
填空题
Read and write.
take→ taking took
1. tell→
2. fly→
3. do→
4. climb→
答案
1. telling told
2. flying flied
3. doing did
4. climbing climbed
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Read and write.
take→ taking took
1. tell→
2. fly→
3. do→
4. climb→
1. telling told
2. flying flied
3. doing did
4. climbing climbed