We don’t have enough nurses to look after the patients. At least _____ are needed.
-- How long ______ you TV by the time I called? -- For two hours. A. had; watched B. have; watched C. were; watching
She stopped ______ and then ______ with us. A. writing; talked B. to write; talk C. writing; talks
-- Which is your new neighbor, Liu Hua? -- The man ______ T-shirt is red. A. that B. whose C. which
I prefer ______ to . A. reading; watching TV B. read; watch TV C. to read; to watch TV
I find ______ difficult to finish the work all by myself. A. it B. that C. this