1. If the weather had been better, we could have had a picnic. But it _______ all day.
A. is raining B. rains C. has rained D. rained
2. Preparing _____ the coming examination, students are ______ great pressure.
A. for, in B. about, with C. for, under D. to, on
3. Why do we have to ______Joan’s selfish behavior? She should learn to care for others£®
A. keep up with B. catch up with C. put up with D. come up with
4. --- Have you been to the Great Wall?