There is no doubt ______ they did a completely bad job at that very moment.
| A．which | B．whether | C．how | D．that |
—What’s that noise?
—There’s a truck stopping outside. It’s someone _____ something.
| A．deliver | B．to deliver | C．delivering | D．delivered |
Remember me to your parents when you _____ them.
| A．are calling | B．call | C．will call | D．have called |
_____ time, the teacher had us do half of the exercises in class and complete the other half for our homework.
| A．To save | B．Save | C．Saving | D．Having saved |
When _____ about one of the biggest concerns today, many citizens mentioned the sharp rise in housing price.
| A．asking | B．to ask | C．asked | D．having asked |
The purpose of the article is to draw public attention _________ the problem.
| A．to | B．on | C．in | D．for |