China sent up Shenzhou V manned spaceship into space successfully, which shows  science and technology ___ rapidly in China.
#101501
A
have been developing
B
develops
C
is developing
D
has developed
推荐题目
I didn’t hear the telephone ringing. I _____.
#103291
A
slept like a dog
B
slept like a pig
C
slept like a mouse
D
slept like a log
By the time Billy was 6, he         in the sea.
#101498
A
had already swum
B
was already swimming
C
has already swum
D
already swam
-----Are you still very busy?-----Yes, I ______ the report for the manager and it won’t take long.
#100851
A
have just finished
B
am just finishing
C
had just finished
D
am just going to finish