-What do you do yesterday afternoon?
-I went to the bookstore，___ some books and visited my uncle.
| A．to buy | B．bought |
| C．Buy | D．buying |
China is_______vast country which is home to______amazing variety of landscapes, plants and animals.
| A．the; the | B．a; the | C．the; an | D．a; an |
．I'm sorry the rooms are all booked out today. That is to say, there's no room _______ for the moment.
| A．useful | B．available | C．extra | D．spare |
In _______ 1960s, ________ number of habitants here is very _______ ,and it was since the middle of 1970s that the population has been increasing rapidly.
| A．不填; the; much | B．the; the; small |
| C．不填; the; large | D．the; a; small |
My sister, as well as her classmates who ______ late for class, ______ criticized by Mr. Hunt.
| A．were; was | B．was; were | C．was; was | D．were; were |
The children were warned of not being too ______ about things they were not supposed to know.
| A．strange | B．amused | C．curious | D．conscious |