21.---- Let’s climb the mountain this weekend, shall we? ---- ________ .
A.That’s a good idea B.It doesn’t matter C.You’re dead right D.I agree with you
22.After half a year of hard training, Miss Li feels fairly _________ that she will pass this driving test.
A.awful B.confident C.brilliant D.skilful
23.We want to know whether the drug has an effect ______ people's health.
A. on B. to C. with D. in
