What is Bill doing right now？
He _____soccer． He _____soccer every Saturday．（ ）
A．play； playsB．plays； is playing
C．is playing； plays
Jimmy wants to _______ his trip because he is too busy with his studies.（ ）
| A． |
put off |
B． |
wait for |
| C． |
prepare for |
D． |
In order to protect the environment，many people choose to go to work _____ subway.（ ）
| A． |
in |
B． |
on |
C． |
by |
Jason will go to visit his grandparents ________ he finishes his work this weekend.（ ）
| A． |
unless |
B． |
though |
C． |
if |
Today is Frank's twelfth birthday.His mother bought a nice present for ______ .（ ）
| A． |
her |
B． |
him |
C． |
them |
Volunteering our time to help people_______ a good way to learn new things.（ ）
| A． |
am |
B． |
is |
C． |
are |