The climbers _____ their ambition by reaching the summit of the mountain.
| A．obtained | B．sustained | C．maintained | D．realized |
An earthquake of 9 magnitude struck off the coast of Japan on Friday,______ thousands of people dead and more missing．
| A．caused | B．causing | C．having caused | D．to cause |
Don’t touch your eyes, nose and mouth, because they aren’t covered by skin and can _______ the virus more easily.
| A．take up | B．pick up | C．make up | D．set up |
A truly rich man is a person _______ children run into his arms when his hands are empty.
| A．whose | B．that | C．whom | D．who |
Childhood memories _______ the new gardener that she has a little nature knowledge after all.
| A．suggest | B．remind | C．command | D．demand |
Greenland is _______ huge island that is mostly covered with_______ thick ice sheet.
| A．the; / | B．a; the | C．a; a | D．the; a |