— He hardly spent any time on his subjects, _________?—_________, so he did badly in his lessons.
The Greens _____ China for seven years.
— Thank you very much for the present you sent to me. — __________.
— What’s the matter? —I am having trouble __________ who has taken my book.
The more you read, __________ you will get.
The Shutes haven’t decided __________ to go there for a field trip this weekend.