It is required by law that a driving test _______ taken before a man gets a license.
| A．was | B．be | C．were | D．is |
The advanced entire production process is paperless and much faster than that of ______ factories.
| A．profitable | B．comparable |
| C．conventional | D．flexible |
Her parents’ quarrelling with each other _________ is the main cause of her family’s breaking up.
| A．constantly | B．occasionally | C．roughly | D．hardly |
Eco-environment Tayshaun has endeavored not to ________ on environmental protection during industrial development.
| A．concentrate | B．compromise |
| C．proceed | D．complain |
The virus Ebola is reported ______ over 3,000 lives in 5 countries of West Africa by now.
| A．taking | B．having taken |
| C．to take | D．to have taken |
It is generally believed that communication skills are becoming ______ it takes to be a good doctor.
| A．whether | B．that | C．how | D．what |