Vitamin C helps our bodies make a special chemical, which __________ affects our brains, making us feel happy.
| A．in all | B．in turn |
| C．in advance | D．in short |
Well, who would you rather ____ with you to the theatre, George or me?
| A．have to go | B．have gone | C．to have gone | D．have go |
Wang Hua is said ____a new computer program recently, but I don’t know when she will finish it.
| A．to design | B．to be designing | C．to have been designing | D．to have designed |
We didn’t expect them ___ for us when we arrived there so late.
| A．to be waiting | B．to have been waiting | C．to have waited | D．to wait |
It is careless ___ the same mistake in your composition.
| A．for you to make | B．for you making | C．of yon to make | D．of you making |
Henry Ford’s introduction to the assembly line vastly reduced the time it look _____.
| A．to make a car | B．for making a car | C．making a car | D．a car to make |