You can stay here __________ you don’t make a loud noise.
A.as long as
B.unless
C.until
D.otherwise

He __________ having sent the anonymous letter.
A.opposed
B.refused
C.accepted
D.denied

He had suffered __________ loss of memory before he died.
A.along
B.from
C.about
D.with

Have you learnt the reason why does the water of the ocean becomes blue?
A.reason
B.does
C.of
D.blue

If either of you take a vacation now, we won’t be able to finish this work.
A.either
B.take
C.won’t be able
D.to finish

"I will let you know the answer by the end of this week,” Tom said to Janet.
A.Tom suggested giving Janet the answer by the end of the week.
B.Tom promised to give Janet the answer by the end of the week.
C.Tom insisted on letting Janet know the answer by the end of the week.
D.Tom offered to give Janet the answer by the end of the week.

I’d prefer him not to have said all those embarrassing things about me.
A.I’d not prefer his saying all those embarrassing things about me.
B.I’d prefer him not saying all those embarrassing things about me.
C.His having said all those things about me is preferentially embarrassing.
D.I’d sooner he hadn’t said all those embarrassing things about me.

The older he grew the more forgetful he became.
A.He became more forgetful and older
B.He grew older and more and more forgetful
C.He grew older when he became more forgetful
D.As he grew older, he became more and more forgetful

I have not experienced such a hurricane as Chanchu since I was a child.
A.Not since I was a child have I experienced such a hurricane as Chanchu.
B.It was not until a child that I experienced such a hurricane as Chanchu.
C.I hadn’t experienced such a hurricane as Chanchu in my childhood.
D.Since I was a child have I experienced so terrible a hurricane as Chanchu.

Although it was raining heavily, _________________.
A.he went out without a raincoat
B.but he went out without a raincoat
C.so he went out without a raincoat
D.however he went out without a raincoat