World Reading Day is April 23. It’s special day that was founded in 1995 by the UN.
| A．on; a | B．in; a |
| C．on; an | D．in; an |
I used to to school by bike, but now I am used to to school.
| A．go, walking | B．go, walk |
| C．going, walking | D．going, walk |
There are some dangerous fishes in this river, and I’ve warned Jack here.
| A．not to swim | B．to not swim |
| C．swim not to | D．to swim not |
Chinese students often give small gifts or cards to their teachers on Teachers’ day to let them know _____.
A.how great they are
B.how great are they
C.what great they are
Tom found _____ difficult to learn chemistry well.
A.it B.that C its
Our English teacher said _____ English well was very important.
A.learn B.learning C.learned