• 2021-04-14
    Before we set off, we (advise) 1 to buy personal travel and health insurance for the trip.


    Our new solar-energy device is about 100 times (efficient) 2 than its previous design.


    The secretary failed (call) 3 the customer and so the company lost the account.



    We (sincere) 4 hope that our cooperation will be further developed and strengthened.



    Much to his (disappoint) 5 , his plan has been turned down by the committee.