I set up email addresses for connecting with my parents last May. But I didn’t write to them as often as I ______.
| A．should | B．must have | C．should have | D．must |
相关试题
The price system is a complex network composed of the prices of all the products bought and sold in the economy as well as of a great number of services.
| A．the one | B．that | C．ones | D．those |
I ______ tell you with certainty that he won’t be able to finish it before the deadline.
| A．will | B．must | C．can | D．may |
His humorous closing speech was a welcome addition to the ______dull meeting．
| A．therefore | B．meanwhile | C．otherwise | D．nevertheless |
Someone _______ his car in front of my house and it is blocking my driveway.
| A．had parked | B．was parking | C．parked | D．has parked |
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