A warm thought suddenly came to me ______ I might use the picket money to buy some flowers for my mother’s birthday.
A. if B. when C. that D. which
How ______ universe came into being is a puzzle to ______ scientists of all generations.
A. the; 不填 B. an; the C. a; 不填 C. 不填；the
It is reported that the United States uses ______ energy as the whole of Europe.
A. as twice B. twice much C. twice much as D. twice as much
I thought him nice and honest ______ I met her.
A. first time B. for the first time C. the first time D. by the first time
It is not who is right but what is right ______ is of importance.
A. which B. it C. that D. this
I wonder how he could ______ not handing in his math exercises yesterday, for his math teacher is always strict with his students.
A. get along with B. get away with C. get down to D. get around
