-- I think the waiter has forgotten us. We ________here for over half an hour!
-- I think you're right. He probably thinks we have already ordered.
| A．are waiting | B．have been waiting |
| C．have waited | D．will wait |
相关试题
Some educators that children should be rewarded for their great performance.
| A．assumed | B．adopted | C．advocated | D．convinced |
—It was cold and the road was icy.
—It a comfortable journey.
| A．can’t be | B．shouldn’t be | C．mustn’t have been | D．couldn’t have been |
what has recently been done to provide more buses for the people, a shortage of public vehicles remains a problem.
| A．Except for | B．But for | C．Because of | D．In spite of |
—Hey! Here is a message on my cell phone, telling me to send money to…
—Delete it! It’s a trick. Many a person by such tricks.
| A．has been cheated | B．have been treated |
| C．were cheated | D．was cheated |
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