He asked them to come to his office one _____. 
#65025
A
at a time
B
at all time
C
at times
D
at one time
推荐题目
He was ________ after winning the competition.
#71333
A
hot under the collar
B
on cloud nine
C
down in the dumps
D
feeling blue
A terrible earthquake ______ in Lushan County, Sichuan Province,______ about 200 people.
#65427
A
took place ; killing
B
was taken place; killing
C
took place; killed
D
was taken place; killed