Unit 2 – Bài tập trợ động từ (2)

Most anti-virus programs are scheduled to perform a background check …. throughout the day on a set schedule.

The interior of the high-speed trains is …. and able to carry more than 500 passengers.

In a recent survey, people appear to consider changing their job when they find their current work too …

Today a lot of manufacturing firms have been too …. about investment, opting to amass cash reserves instead.

There are many folk cultures on the island, which are …. distinct from the mainland.

During the war, a lot of companies in Japan were able to add …. to their wealth by selling deadly weapons.

The …. of these ancient burial grounds has given us a lot of useful information about their culture

A variety of pictures are scanned into a form of proper …. that computers can recognize.

In order to …. the internal market, exports were controlled, and foreign exchange and issuance of permissions were used as foreign trade policies.

Visitors to the library are asked to speak …. and keep conversations brief when in the main reading room.