—Maria isn’t at home .
-How time flies! Three years since we came to this school,-Yes,it a good memory.
-The final exam is coming, but my daughter's Chinese is not good.-Don't it. You can ask her to do more reading and I can also help her.
After three yeas’ hard work, he passed the high school examination.
-Look ! There is a hole the wall. The mouse must run away from here.-I think so. If there is not a picture the hole, we can easily find it.
-Is it cheaper and enjoyable to travel by train than by plane?-Yes, I think so.