I like history， so I to Human Museum many times． （ ）
A．have beenB．have goneC．went
﹣It's ten years since we came here．
﹣How time flies! We ____ in China for so long．（ ）
A．workB．worked
C．will workD．have worked
Could you stay a little longer？ I have ____ more to tell you about the plan for tomorrow．（ ）
A．somethingB．everythingC．anythingD．nothing
You can see the _____ in our faces when we talk about the great achievements in the past 70 years．（ ）
A．doubtB．prideC．regretD．ability
﹣Mum ，I've got the first prize in the speech competition．
﹣_____， my boy! （ ）
A．Well doneB．My pleasure
C．Good luckD．It's hard to say
﹣ It's said that shopping online is safe．
﹣ ____．You'd better be careful．（ ）
A．I agreeB．That depends
C．I think soD．No problem