The boy _____ loudly because he _____ his way in the jungle and thought he couldn’t go back home．
| A．had cried；lost | B．has cried；has lost |
| C．cried；had lost | D．cried；has lost． |
Helen was much kinder to her youngest son than to the others, __________, of course, made the others envy him.
| A．who | B．that | C．what | D．which |
The English play __________ my students acted at the New Year’s party was a great success.
| A．for which | B．at which | C．in which | D．on which |
I will never forget the day _______ I came to my university and the day ______ I spent in a new city.
| A．when; which | B．which; when |
| C．what; that | D．on which; when |
Tony showed me his new cell phone, _______ was small but it could change colors in different weather.
| A．the screen of whom | B．whom the screen of |
| C．which the screen of | D．the screen of which |
We have heard of many cases _______ some citizens ，especially some famous people， have suffered because personal information had been leaked.
| A．why | B．which | C．as | D．where |