He often makes his sister .
A. cry B. to cry C. crying D. cried
I want to buy is a book.
A. How B. What C. That D. Who
Either you or I going to the teacher’s office after class.
A. are B. is C. am D. will
Travelling a good way to learn about the world.
A. is B. are C. have D. has
It is difficult a best friend.
A. to find B. finding C. find D. to be found
It’s raining heavily outside. Tell him the window.
A. not open B. don’t open
C. to not open D. not to open