___________ from space, the earth looks like a blue ball.
| A．To see | B．Seeing | C．See | D．Seen |
I suggested the meeting ______ at the manager’s office.
| A．hold | B．be held | C．is held | D．is to be held |
Today, we _____ work as hard as people did in the past.
| A．mustn’t | B．can’t | C．shouldn’t | D．don’t have to |
It was because I was caught in the traffic jam ________ I came to school late this morning.
| A．which | B．when | C．what | D．that |
There will be a new park in the center of the city, ______?
| A．isn’t there | B．won’t there | C．isn’t they | D．won’t they |