1. He ( leave) home two weeks ago and we (not hear) from him since then.
2. You (speak) to Mrs. Bakers yesterday?
No, I (not see) her for a long time.
I (not can) remember when I last (see) her.
3. When the teacher came in, the pupils (play) games.
4. Columbus (discover ) America more than 400 years ago.
1. He ( leave)left home two weeks ago and we (not hear)haven't heard from him since then.
2. Did You (speak)speak to Mrs. Bakers yesterday?
No, I (not see)haven't seen her for a long time.
I (not can)can't remember when I last (see)saw her.
3. When the teacher came in, the pupils (play)was playing games.
4. Columbus (discover ) discovered America more than 400 years ag
1. left/ haven't heard
2. Did...speak/haven't seen/can't/saw
3. were playing
4. discovered