— Is it for two months ________ they have stayed here?
— No. It’s only three weeks ________ they arrived here.
| A．that; since | B．that; after | C．since; before | D．when; that |
We have made ________ a rule________ in the office.
| A．this; not to smoke | B．it; smoking |
| C．it; not to smoke | D．it; to not smoke |
With a lot of difficult problems _________, the newly-elected president is having a hard time.
| A．settled | B．settling | C．to settle | D．being settled |
I still remember _______ to the Tian’anmen Square and what I saw there.
| A．to take | B．to be take | C．taking | D．being taken |
More highways have been built in China,________ it much easier for people to travel from one place to another.
| A．making | B．made | C．to make | D．having made |
I was in the middle of my call because I had no more coins to put in the box.
| A．cut off | B．broken in | C．hung up | D．put down |