It rained heavily in the south,__________ serious flooding in several provinces.
| A．caused |
| B．having caused |
| C．causing |
| D．to cause |
Do you know ________
| A．how many populations there are in the world |
| B．how much population there is in the world |
| C．how many the population of the world is |
| D．what the population of the world is |
Where do you think ________
| A．has he gone | B．has he been | C．he's gone | D．was he |
This book will show you ________ can be used in other contexts.
| A．how you have observed | B．how what you have observed |
| C．that you have observed | D．how that you have observed |
Do you happen to know ________
| A．what size shoes he wears | B．how big shoes he wears |
| C．what is the size of his shoes | D．what number shoes are his |
Excuse me would you please tell me ________
| A．when the sports meet is taken place | B．when is the sports meet going to be held |
| C．when is the sports meet to begin | D．when the sports meet is to take place |