— Did you know any Chinese before you arrived in Beijing?
— Never ________ it, actually.
| A．had I learned | B．have I learned | C．I have learned | D．I had learned |
---Do you mind if I open the window?
--- _____. In fact, I feel a little hot as well.
| A．Please don’t | B．I’d rather you didn’t | C．Go ahead | D．Why don’t? |
many times, but he still didn’t understand it.
| A．Having been told | B．Though he was told |
| C．To have been told | D．He was told |
—What does this modern-day dinosaur look like?
—The tongue of this animal can be extended _____ of its body.
| A．more than twice the length | B．twice more than the length |
| C．more than the length twice | D．more twice than the length |
The World Wide Web is sometimes jokingly called the World Wide Wait because it_______ be very slow.
| A．should | B．must | C．can | D．will |
. —How about your conference?
—Pretty successful．It allowed both sides of us to better understand ____ each stood on many issues．
| A．where | B．that | C．what | D．which |