问题

The expo is being held in Shanghai, _______a lot of advanced technology is shown for the first time.

A:why
B:which
C:when
D:where

正确答案是：

标签： being , expo , held

同类题型

He is going to work hard get good grades math. [ ]

__________ travelers come to visit our city every year.

The teacher said that light ________ faster than sound.

They are going to go on a world tour _____ they will perform in ten different cities.[ ]

These shoes look very nice. I wonder _______________.