“Do you think he is lazy?” “I _________ so once, but I don’t now.”
| A．may have thought | B．can have thought | C．may think | D．might think |
In fact, no dictionary can all the English words and idioms.
| A．tell | B．show | C．say | D．cover |
—It’s very kind of you to have carried the luggage for me.
— .
| A．I’d love to | B．My duty | C．My pleasure | D．All right |
They asked the government to make ______clear to the public ______ they did was right.
| A．it; that what | B．it; that | C．that; what | D．this; that |
The reason why he failed is ______ he was too careless.
| A．because | B．that | C．for | D．because of |
We were about to climb up to the top of the mountain ________ it began to rain heavily.
| A．as | B．while | C．when | D．since |