(30) ________
A.know
B.knowledgeable
C.knowledge
D.knowledgeably

“I’m sorry I gave you the wrong number”, said Paul to Susan.
A.Paul apologized to Susan for having given the wrong number.
B.Paul accused Susan of having given him the wrong number.
C.Paul thanked to Susan for giving the wrong number.
D.Paul denied giving Susan the wrong number.

I needn’t have watered the garden because it came down in torrents after that.
A.If only I had watered the garden before it came down in torrents.
B.It’s a pity I had watered the garden before it came down in torrents.
C.I regret having watered the garden before it came down in torrents.
D.If it had came down in torrents, I wouldn’t have watered the garden.

There are a lot of clouds_______ the sky.
A.on
B.by
C.at
D.in

The students complained that the teacher was inexperienced.
A.The teacher was popular despite his inexperience.
B.The teacher was favored because of his inexperience.
C.The students praised the teacher for his inexperience.
D.The teacher was not supported for his inexperience.

We gain more knowledge about how to stay safe online. We worry about the threats of cybercrime less.
A.The more knowledge about how to stay safe online we gain, the more we worry about the threats of cybercrime.
B.The more we stay online to gain safety knowledge, the less we worry about the threats of cybercrime.
C.The more knowledge about how to stay safe online we gain, the less we worry about the threats of cybercrime.
D.The more we know about how to stay safe online, we worry about the threats of cybercrime less.

We arrived at the airport. We realized our passports were still at home.
A.Not until we arrived at the airport, did we realize that our passports were still at home.
B.We arrived at the airport and realized that our passports are still at home.
C.Not until had we arrived at the airport, we realized our passports were still at home.
D.It was until we arrived at the airport that we realize our passports were still at home.

He was sacked from his job after the manager discovered that he had stolen some money from his colleagues.
A.dismissed
B.ejected
C.evicted
D.dropped

She simply took it for granted that the check was good and did not ask him any questions about it.
A.objected to it
B.permitted it
C.looked it over
D.accepted it without investigation

As ________ in Greek and Roman mythology, harpies were frightful monsters that were half woman and half bird.
A.description
B.describing
C.to describe
D.described