Such plants, particularly___ to collectors, motivated them to explore on a large scale.
It was along the Mississippi River ______ Mark Twain spent much of his childhood _____ the story happened. A. which; thatB. that; whichC where; thatD. that ;that
---How long ______ in Shanghai? --- For two weeks. I’m going to visit some schools in Shanghai.
“Don’t talk in class again ”, the teacher said to him . The teacher ________.
We had ____ fun at Mary’s birthday party last Sunday.
On hearing his son’s survival, the worried mother _______