—What do you think makes him so sad?
— __________ the exam.
| A．He failed | B．He failing |
| C．His failing | D．To have failed |
He was too tired and fell asleep with a book open on his knee.
| A．laying | B．lying | C．laid | D．lain |
They were playing in the garden they heard a scream.
| A．while | B．as | C．when | D．until |
He went there, some books in a bookshop and called on an old friend of his.
| A．to buy | B．buy | C．buying | D．bought |
—Susan, you will come and watch TV, won’t you?
— . I prefer reading to television.
| A．No;watching | B．Yes,watch | C．Yes;watching | D．No;watch |
Helen go on the trip with us, but she isn’t quite sure yet.
| A．shall | B．must | C．may | D．can |