Experts said it was that Malaysia Airlines Flight 370(马航370) had changed course and turned back toward Kuala Lumpur(吉隆坡).
| A．obvious | B．extinct |
| C．successful | D．energetic |
The woman was about to open the door _______ she heard a strange sound from inside.
| A．as | B．while | C．when | D．then |
The reason_____ she gave for not being present was _____the heavy snow prevented her coming.
| A．why; because | B．why; whether | C．that; that | D．how; that |
Often he______ sit for hours doing nothing at all when he was in low spirits.
| A．should | B．would | C．could | D．might |
—What are you anxious about?
— ____
| A．How can we succeed | B．Whether we can succeed |
| C．When can we succeed | D．That we can succeed |
Mrs. White found her husband ________by letters and papers and________ very worried.
| A．surrounding ; looked | B．surrounded ; looked |
| C．surrounding; looking | D．surrounded ; looking |