Do ________ you think is right _________ difficulties you may have.
| A．what; however | B．that; whatever |
| C．whatever; however | D．what; whatever |
After the long journey, the three of them went back home, ___________.
| A．hungry and exhaust | B．hungry and exhausted |
| C．hungrily and exhaustly | D．hungrily and exhaustedly |
One Friday, we were packing to leave for a weekend away _____ my daughter heard cries for help.
| A．after | B．while | C．since | D．when |
It’s ten years since the scientist ____ on his life’s work of discovering the valuable chemical.
| A．made for | B．set out | C．blocked out | D．turned up |
Fruit _______ several kinds of vitamins, ________ vitamin C.
A. contains; includedB. forms; including
C. forms; containingD. contains; including
The development of industry has been ______ gradual process throughout ______ human existence, from stone tools to modern technology.
| A．不填；the | B．the；a | C．a; 不填 | D．a; a |