______ I admit that there are problems, I don't agree that they cannot be solved.

A. As B. If C. While D. When

A lot of children never fully ______ their mothers until it is too late.

A. urge B. appreciate C. accuse D. motivate

—Did you meet with the famous star yesterday?

—______ I had come a little earlier!

A. If only B. Only if C. But for D. For fear

Not knowing how to grow crops，the primitive people had no ______ but to gather the fruit and hunt animals for food.

A. conception B. commandC. virtue D. alternative

—Where is Mother?

—She is in the kitchen. She ______the housework all morning.

A.does B. has been doingC. has done D. was doing

The questionnaire takes ______ ten to fifteen minutes to complete and can be used along with the assessment interview.

A. mainly B. punctually C. approximately D. precisely

______ takes a lot of concentration and a great sense of balance to stay on it.

A. It B. This C. What D. That

Early peoples moved around, ______ the herds of animals.

A. having followedB. followed

C. followingD. to follow

______ a mile in the fastest time while doing gymnastically correct lunges is yet another event______ Ashrita is outstanding.

A. Covering; in which B. Covering; which

C. Having covered; in which D. To cover; that

Every spring, the park becomes ______ colourful place with lovely flowers everywhere, which is ______ absolutely fantastic sight.
A. the; the B. a; anC. a; theD. the; an