A number of tests have been conducted to _______ that these drugs have no side effects.

39 He is _____ with anger I don’t knowwhat’s the reason

The doctor insisted that the boy_____seriously ill and that he _____on at once.

edicine is quite beneficial to your recovery after the operation, ________ you take it as told.

Simply learn to live in the present, _____ think so much about the future or the past.[ ]