【原创】People find it harder and harder to _____ the pace of modern science with the development of science and technology.
| A．keep in touch with | B．keep the balance of |
| C．keep up with | D．come up with |
It won’t be quite a long time ________ your son is back, so don’t be worried.
| A．that | B．since | C．before | D．until |
—Can I use your tape recorder for a while?
—Yes, ____________.
| A．go ahead | B．it’s up to you |
| C．that’s all right | D．not at all |
—Are you coming to the English evening?
—I’m not sure. I ________ go to the concert instead.
| A．must | B．would | C．should | D．might |
______ you see near the North Pole is nothing but ice and snow.
| A．That | B．What | C．Which | D．Who |
I usually don’t have _____ supper, but I always eat ______ big breakfast.
| A．a, the | B．a, a | C．不填, a | D．不填, 不填 |