题文
I hate travelling by air_______ you usually have to wait for hours before the plane takes off.
| A．because | B．though | C．until | D．Unless |
I hate travelling by air_______ you usually have to wait for hours before the plane takes off.
| A．because | B．though | C．until | D．Unless |
试题篮
()
粤公网安备 44130202000953号
