– Do you have any plans for this Sunday? – Yes, I _______ my grandparents. A. am visiting B. visited C. have visited
Chinese is becoming more and more popular. It ________ in many schools in foreign countries.
— You speak French so well. How long have you learned it? — ________ I was fifteen.
The presentation of the Film Festival will be covered live tonight. It’s worth ________.
It’s so silly ________ people to buy and store so much salt. It’s necessary ________ them to learn more about salt.
He ________ whether he will be able to win the tennis match. So he feels very nervous.