The dinosaur’s eggs are found by explorers in the _______
| A．1920s | B．1920’s | C．1920s’ | D．1920’ |
Often, the fact ________ unemployed people get help from government ________ this from happening, but not always.
| A．how, to prevent | B．that, prevents | C． how, preventing | D．why, prevented |
I am ashamed, sir, that I wasted the many hours _____ I should have devoted to my major.
| A．while | B．as | C．once | D．when |
Turn on the television or open a magazine and you _______ advertisements showing happy families.
| A．will often see | B．often see | C．are often seeing | D．have often seen |
―I'm considering returning home. I just can't get used to the food here.
―Take it easy. _______.
| A．Storms make trees take deeper roots. | B．East or west, home is best. |
| C．From small beginning come great things. | D．All things are difficult before they are easy. |
The company guaranteed a call-back policy_______their products have any risk in safety.
| A．should | B．might | C．could | D．would |