[ Grammar ]
The saw a whale __ they were sailing at the sea.
A. when
B. while
Select your answer:

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Modal Verbs › ViewShe ……… be very pleased with herself. She got the best grades.
A. doesn’t need to
B. cannot
C. has to
D. must
Prepositions › View
I’m sorry you are leaving. I _____ when you _____.
A. am glad / you are back
B. glad / will be back
C. will be glad / are back
D. am glad / will be back
