1. —How about paying a visit to Mr. Richardson, our former history teacher?

   —Good idea. I will e-mail him today so he ___ know ___ to expect us.

   A. may,when     B. would, why     C. will, how     D. shall, why

2. When he was there, he ____ go to that coffee shop at he street corner after work every day.

   A. would    B. should     C. had better       D. might

3. —___John come here tonight?

   —I’m not sure, but he ______ stay at home.

   A. May, might    B. Can, must     C. Must, might     D. Can, migh