Complete the sentences using the correct forms of the verbs in brackets. Use the past simple or past continuous.
1. I first (meet)________ Lan while we (work) _________as volunteers.
2. While we (walk)________ home, we (see) _________ a girl crying near a bus stop.
3. Kim (notice) ___________the poverty of the area while she (deliver) _____ free meals to old people.
4. When I (arrive) ______at the community centre, a guest speaker (give) _________a speech.
Phương pháp giải:
Cấu trúc:
While + S + was/were+ Ving (quá khứ tiếp diễn - hành động đang diễn ra), S + V-ed (quá khứ đơn - hành động chen ngang vào)
When + S + V-ed (quá khứ đơn - hành động chen ngang vào), S + was/ were+ Ving (quá khứ tiếp diễn - hành động đang diễn ra)
Lời giải chi tiết:
1. I firstmet Lan while we were working as volunteers.
2. While wewere walkinghome, we saw a girl crying near a bus stop.
3. Kimnoticed the poverty of the area while she was delivering free meals to old people.
4. When Iarrived at the community centre, a guest speaker was giving a speech.