—I’m entering for the 100—meter race. — .
It's high time that we students ______ even harder at our lessons as the national entrance examination is coming nearer.
I haven’t seen ________Maggie since I came here.
I tried phoning her office,but I couldn’t ________.
The doctor told her that her badly injured husband had a 50-50 chance of ________.
The old man said the accident ________careless driving,so a lot of money ________be paid by the driver.