I will buy you a new bike if you learn how to swim this summer.Is that a ______ ? I’m sure I’ll get the bike. 
#42759
A
chance
B
promise
C
trick
D
treat
推荐题目
----What is _______ the people in the village ?----I am sorry. I don’t know. I only know that _________people like living in village.
#44042
A
the number of , the number of
B
a number of , the number of
C
the number of , a number of
D
a number of , a number of
Deng Yaping could play ping-pong when she was four.
#43909
A
at the age of four
B
four years later
C
for four years
D
four years age