He is writing a report ________ American history.
There is going to ________ a report ________ Chinese history
He is writing ________.
-He is supposed _____ writing the report.
he,is,report,writing,a,he,no,is,not这几个如何组成一句话
He is writing a report at a moment.这句话哪里错了
He is writing a report _____ giant pandas for the club newsl
she is writing a report to her brother 对writing a report to
2.He is the first black president in American history.
He is the first president in American history
He is writing a letter
填介词,1,I am writing a book ____ American history.2,Please cov
a writing music our is report teacher排序