—We all had a lot of fun at the barbecue yesterday. Pity you weren’t there.
—I really should have gone with you but I _____ on some remaining problems.
| A．worked | B．was working | C．would work | D．would have worked |
At the beginning of class, the noise of desks _____ could be heard outside the classroom.
| A．opened and closed | B．to be opened and closed |
| C．being opened and closed | D．to open and close |
This washing machine is environmentally friendly because it uses _____water and electricity than _ ___models.
| A．less; older | B．less; elder | C．fewer; older | D．fewer; elder |
__ __ so much trouble, we failed to complete the task on time.
| A．Faced | B．Face | C．Facing | D．To face |
Oil prices have risen by32 percent since the start of the year,_____a record US $57.65 a barrel on April 4.
| A．have reached | B．reaching | C．to reach | D．to be reaching |
We have to ___the wheat as soon as possible because a storm is on the way
| A．get away | B．get across | C．get through | D．get in |