—Have you seen my pen bought during my visit to Hong Kong Disneyland?
—Oh, Jane must have taken it _________ ; she has the same one as yours.
| A．by mistake | B．on purpose | C．by chance | D．by accident |
The researchers found clear and convincing evidence _______ happiness is the key when it comes to better health and longer lives.
| A．where | B．whether | C．how | D．that |
—What is the result of the survey?
—15% of those surveyed worry that in the long term children _________ be more dependent
on their parents, which does no good to them.
| A．should | B．can | C．may | D．shall |
Freedom-loving young students dislike being restricted by rules, especially ______ which are
“outdated” in their eyes.
| A．the one | B．those | C．ones | D．anything |
—How anxious Ruby is! I wonder what on earth she ________.
—I’m afraid nobody knows. She is always so strange.
| A．has expected | B．will expect | C．will have expected | D．is expecting |
The moonlight was quite bright, and about fifteen yards up the road there was a deep _______ thrown by a tree.
| A．shade | B．shadow | C．shelter | D．reflection |