—You will never believe that it took us two hours to get to the restaurant.
—Really? You ________ in a traffic jam.
| A．needn't have got stuck | B．couldn't have got stuck |
| C．must have got stuck | D．should have got stuck |
—Have you known each other for long?
—Not very long,____we started to work in the company.
| A．after | B．before | C．when | D．since |
The changes in our chemistry lab will cost quite a lot,____they will save us money in
The long run.
| A．or | B．since | C．for | D．but |
.—____can I deal with such a situation?—Take____measure you think best.
| A．How;whichever | B．What;whatever |
| C．How;whatever | D．What;whichever |
These two countries are similar____they both have a high snowfall during winter.
| A．to that | B．besides that | C．in that | D．except that |
.____are the days when teachers were looked down upon.
| A．Gone | B．Go | C．Togo | D．Going |