A good plan must be _______, so that it can adapt to some necessary changes.
A. flexible B. convenient C. specific D. considerate
In a Han Dynasty tomb, they found some precious jars and vases, _______ are valuable.
A. even the pieces of them B. which even pieces
C. even the pieces of which D. that even pieces
I cannot _______ that all of the students will enjoy your classes. After all, students’ tastes vary.
A. appoint B. subscribe C. guarantee D. evaluate
_______no doubt that a green campus plays an important role in the growth of students, both physically and mentally.
A. It is B. There has C. There is D. It has
How nice it _______ if I _______ an elder brother like you!
A. was; had B. would be; had had C. would have been; had D. would be; had
An engineer has designed _______ robot that can work in _______ deep sea to clean waste.
A. a; the B. a; a C. /; the D. the; /
