__________ the task, they had to stay in the lab for another two hours.
| A．Not completing | B．Not completed |
| C．Not having completed | D．Having not completed |
The teachers are so busy that they have no time for outdoor activities ＿＿ they have the interest.
| A．as if | B．even if | C．so that | D．now that |
There was a time ＿＿ Tom was interested in music.
| A．which | B．on which | C．what | D．when |
—How many students in your class are keen on English learning?
— _______ great number, and _______ number seems to be increasing.
| A．A; the | B．The; the | C．The; a | D．A; a |
— Were you glad to hear from him?21-25 CADBD
— Of course. ＿＿, I dreamed of him several times.
| A．What’s more | B．That is to say | C．Believe it or not | D．In other words |
— Do you drink alcohol?
— No, but I used to be a man alcohol.
| A．addicted to | B．was addicted to |
| C．addicted myself to | D．had addicted to |