Mary wants to be ________ good doctor when she grows up．（ ）
| A． |
a |
B． |
an |
C． |
the |
D． |
/ |
I always hate being late for school．
______（ ）
A．So am I．B．So do I．C．So I am．D．So I do．
Doctor Bethune sometimes had to treat the wounded on _____ own．（ ）
A．himB．hisC．themD．their
The Three Gorges Dam produces _____for millions of people in China．（ ）
A．electricityB．influence
C．transportD．technology
Students here often do physics experiments _____small groups．（ ）
A．byB．inC．forD．at
To prepare for _____trip to LA， Betty is making _____list of things to take along．（ ）
A．the； theB．不填； aC．the； aD．a； 不填