——Did you find the missing couple in the mountain yesterday?
——No, but we _____ to get in touch with them ever since.
| A．have tried | B．have been trying | C．had tried | D．had been trying |
At the opening________of the school, our headmaster gave a short speech.
| A．ceremony | B．form | C．matter | D．event |
Sarah pretended to be cheerful，________nothing about the argument.
| A．says | B．said | C．to say | D．saying |
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 |
Our country will try to make greater progress in improving people's living conditions，________lowincome families.
| A．especially | B．absolutely | C．totally | D．extremely |
The modern woman threw away ________ clothes and bought many modern clothes.
| A．out of date | B．outofdate |
| C．up to date | D．uptodate |