A recent study has ________an unexpected conclusion that the African elephant should be divided into two different species.
| A．kept up with | B．made up with | C．caught up with | D．come up with |
Most of the movies directed by Zhang Yimou ________historical facts.
| A．is based on | B．based on | C．are based on | D．basing on |
Although he is far abroad from his hometown, he is much _____ his family.
| A．concerning about | B．concerned about |
| C．concerning with | D．concerned with |
English has been very popular because it is the _______ language in many western countries.
| A．official | B．fluent | C．gradual | D．frequent |
He said that his friend ______ there three days before, but she was not there_______.
| A．had been; now | B．has been; then | C．had been; then | D．was; now |
If it is a sunny day tomorrow, let’s ______it and go swimming in the South Lake.
| A．make use of | B．be made of | C．make up | D．make up of |