I was out town at the time, so I don’t know exactly how it ____________________.
#103133
A
has happened
B
happened
C
happens
D
was happening
推荐题目
—Have you ____ been to our town before?—No, it’s the first time I ___ here.
#104298
A
even, come
B
even, have come
C
ever, come
D
ever, have come
You ____ television. Why not do something more active?     
#101938
A
always watch
B
are always watching
C
have always watched
D
have always been watching