Our company has really taken off and is ______ to make much money this year.
| A．probable | B．likely | C．possible | D．perhaps |
Dad decided to build a small tool room with a lock, ______ he would keep his best tools so my brother couldn’t reach them.
| A．that | B．which | C．what | D．where |
— Have our travel plans been decided?
— No, still ______.
| A．out of order | B．up in the air | C．in the case | D．in the way |
_____ there was no conclusive evidence, most people thought he was guilty.
| A．Since | B．While | C．When | D．However |
David was always ______ his best in any danger, but at that moment he froze.
| A．at | B．in | C．for | D．on |
As the spokeswoman said, ______ we should take action against them depends on what they will do.
| A．why | B．if | C．whether | D．that |