The teacher, with 18 girls and 22 boys of her class, ____ doing experiments in the lab when the earthquake struck.

A．was            B．were          C．had been            D．has been

完形填空

　　Cary is very popular in his college and nearly everybody knows him. He is a basketball (1) and has played in quite a few important (2) held in his home state. And for this reason, he has become the (3) of the college, envy (嫉妒) of the boys, and (4) of the girls. Among his many admirers (5) a girl called Nola.

　　Nola is Cary’s classmate, and Professor Johnson’s (6). Mr John-son is a strict father, and in a (7) where a sports star is not so highly (8). Nola never dares to say Cary’s (9) at home. In the school, they (10) speak to each other and always keep a certain distance.

　　Nola’s family lives near a big sportsground on which every afternoon, after school Cary would spend at least one hour practising basketball (11) returning home. Nola lives on the third (12), and from their balcony (阳台)，she can see the sportsground. As a habit, Nola would sit in a chair on the balcony, reading or doing her homework every day when she comes home. Sometimes she would (13) her head to watch Cary play.

　　Cary doesn’t seem to pay any (14) to Nola. He would work hard on (15). One afternoon, Nola moved her chair into toe (16) and did her homework at her desk but she could still heard the (17) from outside. Then the noise suddenly stopped and the sportsground became very (18). Nola thought it (19) and looked through the (20).

　　She saw Cary there (21) something on the ground with a (22) of chalk. What he was writing? She wondered. Cary finished writing and stood up. He (23) his bag and left for home.

　　After Cary was away. Nola came down quickly and walked quietly to the place (24) Cary had just stayed, she found these words:“Nola, why didn’t you watch me play?”

　　Nola picked up the chalk and added (25) the line:“but yes, I did.”