5. The person you saw at the supermarket ___c_a_n_’_t___ be Susan. I just talked to her on the phone, and she’s at work right now.
Look at the chart and write sentences for the 2 things below.
3. That sweater __m__u_s_t___ be Carla’s. she’s the only one who wear such colorful clothes.
4. Tony ___m_i_g_h_t__ want to go to the concert. He likes music, but I’m not sure if he likes rock music.
Sample conversation 3: A: Here is a flower. The owner must be a girl.
B: Well, it could be a boy. The flower might be a present for his teacher.
情态动词 must, might, could, can’t 后接动词原形, 可以表示 对现在的情况的 推测 .
1. That bright light __c_a_n_’_t ___ be a UFO – there’s no such thing!
2. I’m still waiting for the bus, so I _c_o_u_l_d_/m__i_g_h_t_ be a bit late for the party.