下列有关信用证的业务特点中，说法正确的是（）。A.信用证是一种无条件的银行支付承诺B.信

—I was worried about chemistry， but Mr. Brown gave me an A! rn—________________.

A、Don’t worry about it

B、Congratulations! That’s a difficult course

C、Mr. Brown is very good

D、Good luck to you!

--I was worried about my maths, but Mr. Brown gave me an A.--___________.

A、Don’t worry about it.

B、Congratulations! That’s a difficult course.

C、Mr. Brown is very good.

D、Good luck to you!

Mr Brown was happy that I was invited to joined the picnic.

A．Y

B．N

C．NG

Mr Brown was happy that I was invited to joined the picnic.

A．Y

B．N

C．NG

A．Anaphora

B．Antithesis

C．Anadiplosis

D．Assonance

I know Mr Brown, we______to each other at an international conference.

A．are introduced

B．have been introduced

C．were introduced

D．had been introduced

So little _________ about chemistry that the lecture was completely beyond me.

A) did I know

B) I know

C) do I know

D) I knew

I was worried about my driving test, hut I passed it.()

A. Don't worry about it.

B. Good luck to you.

C. Congratulations!That's not easy.