The website is very popular. And it’s amazing that __________ designer of it is just __________ nine-year-old child.
| A．the; the | B．a; the | C．the; a | D．a; a |
— Can you explain your mistake?
— The fact is _______ I didn’t notice the warning．
| A．that | B．how | C．why | D．what |
My iPhone isn’t in my bag．Where ____ I have put it?
| A．can | B．must | C．should | D．would |
____ you start eating in a healthier way, weight control will become much easier．
| A．Unless | B．Although |
| C．Before | D．Once |
She wishes she ___to the cinema last night．
| A．went | B．would go |
| C．had gone | D．were going |
The old scientist used to say that knowledge ______ from practice．
| A．was coming | B．comes |
| C．had come | D．would come |