To remember things accurately, we don't allow other thoughts our mind.
---Miss Li, where did you visit last week?--- I visited a big company __________ ships are made.
---Mum, have you seen my mobile phone?---_______ you bought last week? I’m afraid I haven’t seen _______.
--- Bill, can I get you anything to drink? --- _________.
---Mum, could you buy me a dress like this? --Certainly, we can buy _______ one than this, but ________ this.
What way can you think of ______ the mice in the room?