I think it’s difficult to go _____the forest alone.
A. across B. through C. though D. cross
Many students like reading the book Harry Potter_____by J.K. Rowling.
A. written B. was written
C. wrote D. was writing
It is a good way to keep both teachers and students_______.
A. to happy B. happying C. happy D. happily
But none of the artists knew _____to make the King happy.
A. when to do B. what to do
C. how to do D. where to do
Now the traffic in our city is becoming ______.than before.
A. much heavier B. more heavier
C. much heavily D. very heavier
I ______play the piano when I was a young boy .
A. wasn’t used to B. wasn’t use to
C. didn’t use to D. didn’t used to
