Multiple choices.
1. She ________ into the thick forest alo ne on such a dark night.
A. dares not go B. dares not to go
C. dare not to go D. doesn’t dare to go
2. My parents never remember my telephone number, and they always ________ look it up.
A. must B. can C. should D. have to
3. --- Where is Jack? I can’t find him anywhere.
--- He ________ his homework upstairs.
A. might have done B. must have done
C. might be doing D. must do
4. He ________ you more help, even though he was very busy.
A. might have given B. might give
C. may have given D. may give