[ Modal Verbs ]
I’m afraid of water because I __________ swim.
A. oughtn’t
B. couldn’t
C. can’t
D. mustn’t

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Relative Clause › ViewWe don’t know the person ______ I gave this money.
A. which
B. whom
C. whose
D. who
Grammar › View
Being shy, I ________ communicate with my neighbors and classmates.
A. hardly
B. slightly
C. usually
D. frequently
Tenses › ViewMy brother ____ past the post office every morning and I ____ him all week to post a letter for me, but he keeps forgetting, so I’m going to post it myself tomorrow.
A. is going / ask
B. goes / have been asking
C. goes / am asking
D. is going / have asked
Grammar › View
Choose the better sentence.
A. Speaking and listening well are important elements of communication.
B. Speaking and to listen well are important elements of communication.