1）There _____ a lot of traffic at this time of day ,so you'd better _____ more careful.
A. has,be B. have,been
C. is,be D. are,are
2）There _____ some water in the cup.
A. is B. am
C. are D. be
3）There _____ an apple and ten bananas in the basket. You can take any of them.
A. is B. are
C. has D. Have
4）There _____ many trees here two years ago.
A.was B. is
C. are D. were