Many scholars and experts from all over the world will be invited to attend this yearly ___ on drug control.
| A．reference | B．intention | C．conference | D．interaction |
My brother John wants to work in the factory which _______ still _______.
A new planet has been discovered recently. It’s ______ Earth，and hopefully it can support human life.
| A．almost three times the size of | B．three times the size than |
| C．three times almost as large as | D．almost three times as larger as |
— Can you believe I had to pay 30 dollars for a haircut?
— You should try the barber’s shop I go. It’s only 15.
| A．as | B．which | C．where | D．that |