People have always been ______ about exactly how life on earth began.
| A．curious | B．excited | C．anxious | D．careful |
Bears ______ fat stores throughout the summer and fall to have energy enough to last them through their winter sleep.
| A．bring up | B．pack up | C．take up | D．build up |
Days later, my brother called to say he was all right, but ________ say where he was.
| A．mustn’t | B．shouldn’t | C．wouldn’t | D．mightn’t |
Jack wasn't allowed to go into the sports club ______ he left his membership card at home.
| A．though | B．as | C．before | D．Until |
Shakespeare’s play Hamlet ______ into at least ten different films over the past years.
| A．had been made | B．was made | C．has been made | D．would be made |
Some people care much about their appearance and always ask if they look fine in ______ they are wearing.
| A．that | B．what | C．how | D．which |