When should I hand in my paper— Your paper must as soon as the bell .

Jim did very wellHe ________ two goals before half-time[ ]

We were swimming in the lake _______ suddenly the storm started.

What do you think of the performancetoday—Great!____but a musical genius couldperform so successfully

47 She was disappointed _____ hearing thenews that Chinese football team lost the first match in “World Cup”