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《Grammar》集体备课PPT课件优质课下载
The Yangtze River flow into the Pacific Ocean.
2) All the students in my class are done their homework now.
3) She lived in Beijing since she came to China.
4) Recently I have my first ride on a long-distance train.
5) Do you mind open the window?
6) We all like the photographs taking by our teachers.
Correction
flows
doing
has
had
opening
taken
∧
Part I
The present simple tense ：do/does
The present continuous tense:
am/is/are doing
The present perfect tense :
have/has done
The simple past tense: did
placemat
do/does
have/has done
am/is/are doing