People often mistake some __________ objects such as kites or balloons for UFOs.
| A．man make | B．man-make | C．man-made | D．men-made |
The manager would like to offer the position to ____ is fit for it.
| A．who | B．whomever | C．whoever | D．Whichever |
I am sure ____ he did is wise.
| A．that | B．about that | C．of that | D．that what |
By the time he ____ at the party, all the other guests ____ playing games.
| A．arrived; had begun | B．arrived; began |
| C．had arrived; began | D．had arrived; have begun |
The English language ____ the grammar and vocabulary that people from many different countries and cultures brought to Britain.
| A．is made of | B．is consisted of |
| C．is made up of | D．makes up |
Scientists observe ___ making the most of our senses when we are young can keep us healthy later on in life.
| A．if | B．what | C．that | D．When |