— Look, it _____ be Jack who is at the gate of the library.It _____ be him. He has gone abroad.may; must B. must; mayn’t C. must; can’t D. can; mayn’t
The start of a new year brings hope — hope _____ better health, more happiness and greater success.
---Is Sarah coming ? --- No. She should have let us know earlier , but _______ she has been very busy recently.
We passed through some beautiful _______ on our journey through the Lake District.
It was _______ you had done _______ made it possible for you to improve your English.
Your friends were all worried about _______ you were sick.