I didn’t quite follow him because he explained the theory _____that is too abstract for me.
It is very kind of you to do the washing-up, but you it.
---Let’s see if the basketball game has started yet. ---Started? It must be clear who by now.
---Are you still going to Shanghai for the Spring Festival? ---Yes, but I really because I have a lot of things to deal with.
---Look! The clouds are gathering. ---Yes. I’m afraid it be pouring down soon.
The poor boy the test again; in that case, his mother will be very disappointed.