Three bridges ________ over the river five years ago.
#36293
A
built
B
build
C
were built
D
are built
推荐题目
It ________ over ten years since the dog ____________. 
#37619
A
is; died
B
is; has been dead
C
has been; has died
D
was; has died
— It's said a pianist will perform at Poly Theater on Friday evening. Is it Lang Lang? — Yes, it _______ him. He _______ for a week.
#37340
A
must be; has arrived here
B
Can’t; has been here
C
must be; has been here
D
maybe; has arrived here
Her life ________ a lot during the last three years.
#41954
A
changed
B
changing
C
has changed
D
will change
Look! The girl ________in the classroom.
#41932
A
dances
B
dancing
C
is dancing
D
dance
—Excuse me, Mum. When can we have dinner? —Not until it   in half an hour.
#36824
A
is prepared
B
has been prepared
C
will be prepared
D
was prepared