—How long do you think it is ________ he arrived here?
—No more than half a year, I believe.
| A．when | B．that | C．before | D．since |
_______ of the heavy burden of homework, the children rushed out of the classroom and enjoyed themselves.
| A．To be free | B．Freeing | C．To free | D．Freed |
_______ good and sweet, this kind of apple was soon sold out in the market.
| A．Tasted | B．Tasting | C．Having been tasted | D．Being tasted |
________ in the cage for half a day, the bird became hungry.
| A．Being kept | B．Having kept | C．Having been kept | D．Have been kept |
Outside the school _______ crowds of students, ______ to know the results of the exam.
| A．stand; too anxious | B．stand; too excited | C．stands; very worried | D．stands; eager enough |
We regret to inform you that there are no tickets ________ for Friday’s performance.
| A．available | B．useful | C．convenient | D．affordable |