.I used to ______ a lot of time __________ games with my friends.
| A．take; to play | B．cost; playing | C．spent; on | D．spend; playing |
--I’m worried about my English.
-- ______ harder ________ you will catch up with your classmates.
| A．Working; and | B．To work; or |
| C．Work; and | D．Worked; or |
I can’t go to the cinema with you because I _______ stay here until my mother comes back.
| A．can | B．could | C．may | D．must |
Let’s have_________ break; I want to make________ telephone call.
| A．a; a | B．a; the | C．the; a | D．the; the |
I don’t know how to begin a talk with Betty. She can sit all day long _______a word.
A. by B. with C, in D. without
He told us that where ______ a picnic was not decided yet.
| A．having | B．to have | C．have | D．had |