One of the most important questions the government had to consider was _____ of public health.
| A．what | B．this | C．that | D．which |
The girl couldn't_____ how red his face was.
| A．help to notice | B．be helping to notice | C．be helping noticing | D．help noticing |
Your mother and I are looking forward________ you.
| A．of seeing | B．for seeing | C．to see | D．to seeing |
I'd ______ the operation unless it is absolutely necessary.
| A．rather not have | B．rather not to have | C．not rather had | D．rather not having |
Would you please ______ write on the textbooks?
| A．don't | B．not to | C．not | D．to not |
Tommy had his big brother _____ his shoes for him.
| A．to tie | B．tie | C．tied | D．tying |