Choose the best answer A, B, C or D

Ex1. Choose the best answer A, B, C or D.
1. The government wanted to know why the environment in that area as well as the
surrounding one_.
A. becomes purer and purer B. were becoming more and more unpolluted
C. became over polluted D. became more and more seriously polluted
2. The manager asked the actress if she _ that distinctive protagonist.
A. can assume B. can undertake
C. could assume D. could be undertaken
3. The accused asked the lawyer what percent _ in that lawsuit.
A. might they hold steady B. they might hold steady
C. they may hold steady D. they can win
4. The customer asked the milk roundsman if he _ all kinds of milk that she _
recently to the main entrance of her office before 10 a.m.
A. could deliver; had ordered B. can deliver; ordered
C. will deliver; has ordered D. could take; ordered
5. Mom told the charwoman, Mary _ her mischievous son, Thomas. However Mary
still _ her important documents on the table.
A. to pay no attention; let him to touch B. to take little notice; let not to touch him
C. to attract attention of, let him touch in D. to take notice of; let him tear