I just wonder________that makes him so excited.
| A．why it does | B．how it is | C．what it is | D．what is it |
—— What were you up to when your parents came in?
—— I＿＿＿＿＿for a while and＿＿＿＿＿some reading.
| A．was playing； was going to do | B．played； did |
| C．had played； was going to do | D．had played； did |
—— Remember the first time we met, Jim?
—— Of course I do.You ＿＿＿＿＿ in the library.
| A．were reading | B．had read | C．have read | D．read |
The vegetables didn’t taste very good.They＿＿＿＿too long.
| A．had been cooked | B．were cooked | C．had cooked | D．cooked |
—— Was the driving pleasant when you went to Mexico last summer?
—— No, it ＿＿＿＿ for four days when we arrived, so the roads were very muddy.
| A．was raining | B．had been raining | C．would be raining | D．rained |
I used to drink a lot of tea but these days I ＿＿＿coffee.
| A．prefer | B．preferred | C．have preferred | D．am preferring |