There are certain _______when you have to interrupt people who are in the middle of doing something.
| A．chances | B．situations | C．occasions | D．opportunities |
The bicycle looks much like mine, but it isn’t.it be John’s?
| A．Must | B．Can | C．Should | D．Will |
This is a newly developed software from which your computer can.
| A．suffer | B．benefit | C．fall | D．produce |
In learning English they’ve reached a degreethey can read foreign newspapers and magazines in almost a free way.
| A．but | B．what | C．which | D．where |
—Our motherland needsdevelopment all the way to the future.
—That’s really what we need.
| A．timely | B．effective | C．further | D．natural |
The boy whose mother was out for business hurt a finger, an apple into pieces.
| A．to cut | B．cut | C．cutting | D．and cutting |