同义句转换,特急Lucy will be back today,or she will be back tomorrow

同义句转换,特急
Lucy will be back today,or she will be back tomorrow.
Lucy will come back------- today------- tomorrow.
Li Ping flew to the USA for an important meeting.
Li Ping-------- to the USA --------- -------- for an important meeting.
Ann couldn’t catch up with the others in her study.
Ann-------- ------- the others in her study.