The computer____(be)not in the office.But now it____(be)there.

问题描述:

The computer____(be)not in the office.But now it____(be)there.

The computer___was_not in the office. But now it__is__there.
第一个空:计算机不在办公室,用过去时较为合适;
第二个空:有now,用一般现在式较合适.