Look out! Don’t get too close to the house ______ roof is under repair.
| A．where | B．that | C．whose | D．which |
______ as the “First Lady of Speech”, Dr Lillian Glass is recognized as one of the world’s leading experts on communication skills.
| A．Knowing | B．Having known | C．Known | D．To be known |
It rained nonstop for ten days , completely our holiday.
| A．to ruin | B．ruined | C．having ruined | D．ruining |
—What happened to you on your way back to the hotel last night ?
—I lost my way in complete darkness and , things worse , it began to pour .
| A．making | B．to make | C．having made | D．made |
Creating better health care, education and housing for everyone is a simple idea, but ____ which is hard to put into practice．
| A．one | B．that | C．the one | D．the other |
Cars play an important role in modern life, but they_______also cause many problems like air pollution．
| A．should | B．can | C．must | D．Will |