.
Look at the sign, Sir. We don’t permit _________ in the hall.
| A．smoke | B．to smoke | C．smoking | D．to have a smoke |
The 2016 Summer Olympic Games will be held in Rio de Janeiro, Brazil, which becomes the first city in South America _________ Olympics.
| A．hosting | B．having hosted |
| C．being hosted | D．to host |
—For the long-term development, we have to attach importance to the quality of our products.
—That’s right. ______.
| A．Great minds think alike |
| B．Two heads are better than one |
| C．In the end things will mend |
| D．Look before you leap |
We students had better ______ some sports because sports can give us a perfect figure and protect us from getting illness easily.
| A．take up | B．make up |
| C．pick up | D．build up |
Finally, the young explorer, through a series of lucky accidents, arrived ______ was so-called the valley of death by the locals.
| A．where | B．what | C． in which | D．in what |
The police and the locals joined together to look for the missing boy, ______
his families a ray of hope.
| A．gave | B．to give |
| C．giving | D．having given |