10. 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 |
The player kept on running ___ it was raining heavily.
| A．if | B．although | C．until | D．in case |
---Hello.May I speak to Lucy?
---_____! Please…I’m afraid she is ____.
| A．Hold on, out | B．Wait, out | C．Hold up; in | D．Hang up, in |
The light is out in her room. She ___ to bed.
| A．can’t go | B．can’t have gone | C．must have gone | D．has gone |
---Excuse me, is this seat taken?---____.Please have a seat.
| A．Yes, it is | B．All right | C．No, it isn’t | D．OF course |
It was in the street __ this little girl saw a great scientist named Einstein for the first time in her life
| A．where | B．on which | C．that | D．who |