— I really enjoy Chinese food!
— Me, too. My mouth was watering________ I watched TV program A Bite of China.
| A．when | B．before |
| C．since | D．after |
____________the heavy snow in America, many people had to stay at the airport and couldn’t celebrate Cristmas with their family.
| A．Because | B．Thanks to | C．As a result of | D．As a result |
Although he is only 14 years old, he __________drugs for two years.
| A．addicts | B．has addicted to | C．has addicted | D．has been addicted to. |
The children were not allowed ________ the house because it was being painted .
| A．entering | B．to enter | C．entered | D．enters |
We had to wait one and half hours _________ we had already booked a table.
A. since B. although C. until before
When we arrived the cinema, the movie ____________ for 20 minutes.
A. had started B had been on C. started D. is on