:一、单选 20
1. His lovely explanation made the students ______ in his teaching.
A.
interest B.
interesting C.
interested
D. to interest
2. The
reason ______ he had to look after his mother at hospital was not the reason______
he gave to us.
A. why;
what
B. that; that
C. that; why
D. why; why
3. The officer ______ requested him to put on his outdoor clothes.
A. in
charge B. in the charge C. who is in charge D. who was in the charge
4 Is this research center _______ you visited the modern equipment
last year?
A. that B. the one
where
C. the one that D.
the one
5. — Do you hear
someone knocking at the door?
— Yes, I did. I heard him ______
three times.
A.
knocking B.
knocked C.
being knocking
D. knock
