—________ I borrow your math book?—Sure, here you are.A. Must B. Should C. May
—I’m sorry to keep you waiting for me so long. —_______
Sally sings pretty _______ and she is also _______ at dancing.
Jenny, you often get ill, so you should _______ your health.
Bill can swim, _______ he can’t sing.
Daming likes _____ in the morning everyday.