1 . Sitting in the lecture hall          a number of committed teachers,         attention was on an outstanding teacher’s lesson.

A．were, their

B．was, whose

C．was, their

D．were, whose

2 . Only recently ___________using these plants to clean up soil and water in this area, one of most polluted sites that ___________polluted by heavy metals.

A．have investigators considered; have been	B．investigators consider; has been
C．investigators have considered; has been	D．do investigators consider; have been

3 . Only ________ to solve the problem and only working with him ________.

A．he is able; we can succeed	B．is he able; can we succeed
C．through him are we able; can lead to success	D．through him is able; can success be achieved

4 . So many times ________ that he finally got to bear everything crucial in mind.

A．I had him warned	B．I had had him warned
C．had I him warned	D．had I had him warned

5 . The business of each day, ________selling goods or shipping them, went quite smoothly.

A．it being

B．be it

C．was it

D．it was

6 . — “Recently I often watch the TV programs about the Russia-Ukraine war, but I don’t give up any Word Cup football match.”
— “_________.”

A．So do I

B．So I do

C．I do so

D．So it is with me

7 . ________ the destruction of the old temple that we have to take measures to deal with it.

A．So is the severity of	B．However severe is
C．As severe is	D．Such is the severity of

8 . _____he is，_____he can do something that grown­ups do.

A．A boy as;but	B．A boy though;yet
C．Boy as;yet	D．Boy as;but

9 . ________ to do the work, I should do it some other day.

A．If were I

B．I were

C．Were I

D．Was I

10 . Not only________ buying a house as a top priority, but also________ the education of his children as extremely important.

A．did he regard; did he consider	B．did he regard; he considered
C．he regarded; did he consider	D．he regarded; he considered