_____ we shall be able to help you when you’re in trouble. Please trust us.
A.It’s doubtful whether B.We doubt whether
C.It’s no doubt that D.There’s no doubt that
Teaching is not just a simple piece of work; it’s an art _____ a science.
A.is based on B.based with C.based on D.depended on
At last, the _____ jewelry turned out to be completely _____!
A.priceless, worthless B.worthless, valuable
C.priceless, valuable D.worthless, inexpensive
The Summer Palace, which we visited last summer, is one of Beijing's main tourist _____.
A.attractions B.dominations C.motivations D.conditions
We must _____ a new teacher at once to the mountain school.
A.appreciate B.appoint C.arrange D.name
John fell ill because he was caught in the rain yesterday; it is _____ of him to forget to take an umbrella.
A.physical B.electrical C.typical D.practical
