— How about your weekend?
— Very boring. We could do nothing but ______ for the sky to clear up.
| A．wait | B．waiting | C．to wait | D．to be waiting |
The Chinese diet is so healthy, which ________ a lot of fruit and vegetables.
| A．contains | B．includes | C．containing | D．including |
It is the first time that the local education authority ________ such strict requirements on going-to-school time for primary and middle school students.
| A．makes | B．has made | C．had made | D．made |
There are over 58, 000 rocky objects in ________ space, about 900 of which could fall down onto________ earth.
| A．the; the | B．不填; the | C．the; 不填 | D．a; the |
Although the novel isn’t popular among adults, it ______ the youth, especially boys.
| A．refers to | B．appeals to |
| C．results in | D．deals with |
The experts were doing their experiment in the lab, ______ what happened outside.
| A．didn’t know | B．not knew |
| C．not knowing | D．having not known |