If the weather had been better, we could have had a picnic. But it ____ all day.
| A．rains | B．rained | C．has rained | D．is raining |
It is worth considering what makes “convenience” foods so popular，and ________better ones of your own.
| A．introduces | B．to introduce |
| C．introducing | D．introduced |
________left the door unlocked must be held responsible for the accident.
| A．Whomever | B．Whoever |
| C．Whatever | D．Whenever |
—Why don't we take a little break?
—Didn't we just have________?
| A．it | B．that | C．one | D．this |
—I can't repair these until tomorrow，I'm afraid.
—That's OK. There's ________.
| A．no problem | B．no wonder |
| C．no doubt | D．no hurry |
—How did I do on ________ test?
—Well，actually you didn't do very well. I wonder if you had had ________ good review of your lessons.
| A．a；a | B．the；the | C．a；the | D．the；a |