Though it’s not the 1st time that I ________ Beijing, I still can’t adjust myself to the weather. 
#92066
A
been to
B
had been to
C
have been to
D
went to
推荐题目
Though great efforts have been      on their study , Annie still can’t make any improvements , which makes her parents greatly ______ .
#92944
A
made ; disappointed
B
done ; disappointing
C
taken ; disappointed
D
given ;disappointing
—What does this modern-day dinosaur look like? —The tongue of this animal can be extended _____ of its body.
#93436
A
more than twice the length
B
twice more than the length
C
more than the length twice
D
more twice than the length