the red switch on the left and the flying machine will swiftly go up into the air and      its journey. 
#92558
A
Press, begins
B
Press, begin
C
Pressed, begins
D
To press, to begin
推荐题目
My father moved to Hainan in _____, when he was in ______.
#92996
A
the early 1990s; his thirties
B
early 1990s; his thirties
C
the early 1990’s; his thirty
D
early 1990’s; his thirty
Rather than _____ on a crowded bus, he always perfers _____ a bike.
#94696
A
ride; ride  
B
riding; ride
C
ride; to ride
D
to ride; riding
I often visit my parents, who live in the countryside  whenever ____.
#92836
A
I am convenient
B
it will be convenient to me
C
I will be convenient
D
it is convenient to me