Was it ______ the international conference that made the city the focus of this area?[ ]

Mike is only 15 years old. He is not ______ to get a driver’s license(驾照).

Do you know if Tom ________to the concert— I’m not sure, but if he________, I’ll go to the concert with you.

8, three American scientists invented ____transistor, which is ____ small electronic device to control an electriccurrent.

Can I use (用) your dictionary, Helen — Sure. ________.