The World Wide Web is sometimes jokingly called the World Wide Wait because it ______ be very slow.
| A．should | B．must | C．will | D．can |
Whenever I met her，________ was fairly often, she greeted me with a sweet smile.
| A．who | B．which | C．when | D．that |
—Are you ready for Spain?
—Yes.I want the girls to experience that________ they are
young.
| A．while | B．until | C．if | D．before |
—Have you ________ some new ideas?
—Yeah. I'll tell you later.
| A．come about | B．come into |
| C．come up with | D．come out with |
We feel________our duty to make our country a better place.
| A．it | B．this | C．that | D．one |
Since here it's too hot for you，you may ________ go to work in a seaside city.
| A．almost | B．as well | C．hardly | D．at all |